I did. I also linked to a Hebrew interlinear.
You did not quote it as you claimed!
Also your claim that aionios appears in Exo 15:18 LXX is wrong. It isn't there.
Your quote was of Exo 15:18. There are no "mountains" mentioned there. As i said:
Where which post?
Even your own source above with Exo 15:18 proves aionios is used of finite duration. Now apply that knowledge to aionios in Dan 12:2 & the punishment there is not everlasting but temporary.
That ain't the way it is done amigo!~ Your examples are irrelevant. That is the "Same meaning" lexical fallacy. Insisting that a word must have the same meaning in all its usages. When Jesus called Peter a rock and Satan he was not actually either one. There are actual rocks and a Satan. That Jesus called Peter those things does not mean every rock or Satan is Peter. There were actual foxes but Herod was not one when Jesus called him that. Thunder exists but James and John were not actual sons of thunder when Jesus called them that. Hyperbole! Hyperbole! Hyperbole!
.....If the 1917 JPS translates "Olam" as "eternal" then it will take more than saying "I'm right and you're wrong! Am too! Nuh huh! I have two electronic and 2 print editions of Brown,Driver, Briggs Hebrew lexicon.
עוֹלָם S5769, 5865 TWOT1631a GK6409, 6518439 n.m. long duration, antiquity, futurity;—ע׳ Gn 9:12 + 405 times; עֹלָם 3:22 + 19 times; עֵילוֹם 2 Ch 33:7, read prob. עוֹלָם (for other explan. v. note in KitHpt); sf. עֹלָמוֹ Ec 12:5; pl. עוֹלָמִים Is 26:4 + 7 times, עֹלָמִים ψ 145:13 + 2 times; cstr. עוֹלְמֵי Is 45:17;—† 1. of past time: a. ancient time: יְמֵי ע׳ days of old Is 63:9, 11 Am 9:11 Mi 5:1; 7:14 Mal 3:4; יְמוֹת ע׳ Dt 32:7; עַם ע׳ Is 44:7 ancient people; גּוֹי מֵע׳ Je 5:15; חָרְבוֹת ע׳ old waste places Is 58:12 61:4, cf. Ez 26:20 b; פִּתְחֵי ע׳ ancient gates ψ 24:7, 9; ארח ע׳ Jb 22:15; נתבות ע׳ Je 6:16; שְׁבִילֵי ע׳ 18:15; גבול ע׳ Pr 22:28; 23:10; במות ע׳ Ez 36:2; מִן (םֵ)ע׳ from of old Is 64:3 Je 2:20 Jo 2:2, of the fathers Jos 24:2, the prophets Je 28:8, the ancient נפלים Gn 6:4; (Ez 32:27 G Co for מערלים; but 1 S 27:8 read מִטֵּלָם for מעולם We Dr HPS); בהם ע׳ long in them Is 64:4 (text dub.). b. מֵתֵי ע׳ the long dead ψ 143:3 La 3:6; so עַם ע׳ Ez 26:20. c. of God, מֵע׳: former acts Is 46:9; as redeemer Is 63:16; of love ψ 25:6, judgment 119:52, dominion Is 63:19; long silence 42:14; 57:11 G B Michaelis conj. מַעְלִם for מֵעוֹלָם; cf. I. [עָלַם] Hiph. ψ 10:1; his wisdom personif. Pr 8:23; his existence ψ 93:2. d. of things: גבעות ע׳ ancient hills Gn 49:26 (J), Hb 3:6 (|| הררי־עד), Dt 33:15 (|| הררי קדם). e. pl. שְׁנוֹת עולמים ψ 77:6 years of ancient times; דורות עולמים Is 51:9; לעלמים Ec 1:10 in olden times. 2. a. indef. futuring, c. prep. for ever, always (sometimes = during the lifetime); עֶבֶד עולם slave for ever Dt 15:17 1 S 27:12 Jb 40:28; עָבַד לע׳ serve for ever Ex 21:6 (E), Lv 25:46; עד ע׳ 1 S 1:22; גְּאֻלַּת ע׳ Lv 25:32 redemption at any time; הֲרַת ע׳ Je 20:17 ever pregnant (womb); כְּלִמַּת ע׳ v 11 of persecutors of Jeremiah; חרפת ע׳ 23:40; שַׁלְוֵי ע׳ ψ 73:12 alway at ease; יְחִי לע׳ (יחיה) may the king live alway 1 K 1:31 Ne 2:3; cf. אֹרֶךְ יָמִים עולם ועד ψ 21:5; ישׁב עולם לפני אלהים 61:8; so of the pious, לע׳ לא ימוט 15:5; בל ימוט Pr 10:30, cf. ψ 30:7; other phr.: ψ 37:27, 28 41:13; 55:23; 61:8; 73:26; 121:8 Pr 10:25; ע׳ אשׁירה ψ 89:2 I will sing for ever (as long as I live), cf. 52:10; 115:18; 145:1, 2; הוֹדה לע׳ 30:13; 44:9; 52:11; 79:13; other emotions and activities continuous through life 5:12; 31:2 = 71:1, 75:10; 86:12; 119:44, 93, 98, 111, 112 Mi 4:5, cf. לע׳ 2:9. b. = continuous existence, (1) of things: the earth, הָאָרֶץ לְעוֹלָם עֹמֶדֶת Ec 1:4; other phr.: ψ 78:69; 104:5, heavens and contents 148:6, ruined cities Is 25:2; 32:14 Ez 26:21; 27:36; 28:19, ruined lands Je 18:16; 25:9, 12; 49:13, 33; 51:26, 62 Ez 35:9 Zp 2:9; לעד עד ע׳ Is 30:8 for a witness for ever, in a book; (2) of nations: לעולם אהיה 47:7 (Babylon loqu.), cf. ψ 81:16 Ob 10; ישׁב לע׳ of Judah Jo 4:20; (3) families ψ 49:12 Is 14:20; the dynasty of Saul 1 S 13:13; house of Eli 2:30; (4) national relations: איבת ע׳ continual enmity Ez 25:15; 35:5; of exclusion from קהל י׳, עד ע׳ Dt 23:4 = Ne 13:1; various relations Is 32:17; 34:10; חרפת ע׳ perpetual reproach ψ 78:66, of dynasty of David 2 S 3:28; 12:10 1 K 2:33, families v 33 2 K 5:27 ψ 106:31 Je 35:6. c. of divine existence: אל עולם Gn 21:33 (J); אלהי ע׳ Is 40:28; חי אנכי לע׳ Dt 32:40; חֵי הע׳ Dn 12:7; of divine name, זה שׁמי לְע׳ Ex 3:15 (E), cf. 2 Ch 33:7 (v. supr.); blessing and praise of it 2 S 7:26 = 1 Ch 17:24, ψ 72:19; 135:13; of י׳ himself89:53; attributes, אהבה Je 31:3 1 K 10:9; חסד Is 54:8 ψ 89:2; 138:8; לע׳ חַסְדּוֹ 1 Ch 16:34, 41 2 Ch 5:13; 7:3, 6; 20:21 Ezr 3:11 ψ 100:5; 106:1; 107:1; 118:1, 2, 3, 4, 29; 136:1 + 25 times, Je 33:11; כבוד ψ 104:31; אמת 117:2; 146:6; צדק 119:142; עצה 33:11; reign Ex 15:18 (E), ψ 10:16; 66:7; 92:9; 146:10 Je 10:10 Mi 4:7; יהוה לע׳ ישׁב ψ 9:8; 29:10; 102:13 La 5:19; presence in Zion 1 Ch 23:25 Is 33:14; 60:19, 20 Ez 37:28; 43:7, 9; his salvation Is 51:6, 8; זרעת ע׳ Dt 33:27 everlasting arms; כל אשׁר יעשׂה האלהים יהיה לע׳ Ec 3:14. d. of God’s covenant: בְּרִית ע׳ everlasting covenant Gn 9:16; 17:7, 13, 19 Ex 31:16 Lv 24:8 Nu 18:19 (all P), 2 S 23:5 1 Ch 16:17 = ψ 105:10, Is 24:5; 55:3; 61:8 Je 32:40; 50:5 Ez 16:60; 37:26; covenant with Noah, לְדֹרֹת ע׳ Gn 9:12 (P); God remembers it 1 Ch 16:15 = ψ 105:8, ψ 111:5; will not break it, לע׳ Ju 2:1; אוֹת ע׳ Ex 31:17 (P); אוֹת עד ע׳ Dt 28:46. e. of God’s laws: דבר(ים) Is 59:21 ψ 119:89; משׁפט 119:160; עדות v 144, 152; חק ע׳ Ex 29:28; 30:21 (E), Lv 6:11, 15; 7:34; 10:15; 24:9 Nu 18:8, 11, 19 (P), also Je 5:22 (of bounds of sea); חק עד ע׳ Ex 12:24 (J), חֻקַּת ע׳ v 14, 17; 27:21; 28:43; 29:9 Lv 3:17; 7:36; 10:9; 16:29, 31, 34; 17:7; 23:14, 21, 31, 41; 24:3, 8 Nu 10:8; 15:15; 18:23; 19:10, 21 (P) (most of these in fact specif. Jewish and temporary); temple to bear God’s name, עד ע׳ 1 K 9:3 = 2 Ch 7:16; לע׳ 2 K 21:7 2 Ch 33:4; consecrated לע׳ 30:8; its ceremonies לע׳ 2:3; Levit. priesthood, לשׁרתו עד ע׳ 1 Ch 15:2; Aaronic priesthood, לברך בשׁמי עד ע׳ 23:13(×2). f. of God’s promises: his word, יקום לע׳ Is 40:8; promised dynasty of David, עד (ה)ע׳ 2 S 7:13, 16(×2), 25 = 1 Ch 17:12, 14(×2), 23 ψ 18:51 = 2 S 22:51, 1 K 2:33, 45 1 Ch 22:10 ψ 89:5; לע׳ 1 K 9:5 1 Ch 28:4, 7 2 Ch 13:5 ψ 89:29, 37 2 S 7:29(×2) = 1 Ch 17:27(×2); of holy land 1 Ch 28:8, אֲחֻזַּת ע׳ Gn 17:8; 48:4 Lv 25:34 (P); given לע׳ Ex 32:13 (J) 2 Ch 20:7; עד ע׳ Gn 13:15, inherited לע׳ Is 60:21 ψ 37:18; עד ע׳ Is 34:17; dwelt in עד ע׳ Ez 37:25; other blessings, לע׳ Dt 5:29 Ho 2:21; עד ע׳ Dt 12:28 2 S 7:24 = 1 Ch 17:22, ψ 133:3; שִׂמְחַת ע׳ Is 35:10; 51:11; 61:7; דֶּרֶךְ ע׳ ψ 139:24; שׁם ע׳ Is 56:5; 63:12; אות ע׳ 55:13; גאון ע׳ 60:15; Jerus. to abide לע׳ Je 17:25 ψ 125:1, cf. Je 31:40; עד ע׳ ψ 48:9. g. of relations between God and his people, לע׳ 1 Ch 29:18 ψ 45:18; 85:6; 103:9; 145:21 Is 57:16 Je 3:5, 12 La 3:31 Jo 2:26, 27; עד (ה)ע׳ ψ 28:9 Mal 1:4. h. of Messianic dynasty and king: (ל)ע׳ ψ 110:4; having divine throne 45:7; name endures 72:17; established 89:38; God blesses him 45:3; of his reign, מעתה ועד ע׳ Is 9:6. i. = indefinite, unending future: live לע׳ Gn 3:22 Jb 7:16; הנביאים הלע׳ יִחְיוּ Zc 1:5 the prophets, can they live for ever? cf. חדל לע׳ ψ 49:9; c. neg. never Ezr 9:12 Pr 27:24. j. after death: שׁנת ע׳ Je 51:39, 57; בית ע׳ Ec 12:5; חַיֵּי ע׳ Dn 12:2; דראון ע׳ v 2; also v 3 Jon 2:7 Ec 2:16; 9:6. k. = age (duration) of the world: את העלם נתן בְּלִבָּם Ec 3:11 the age of the world he hath set, etc. (cf. especially NH; others i). 1. pl. intens. everlastingness, eternity: תשׁועת עולמים Is 45:17; צדק עלמים Dn 9:24; צור עולמים Is 26:4 (RVm rock of ages); מלכוּת כל עלמים ψ 145:13; also 61:5; 77:8 1 K 8:13 = 2 Ch 6:2. m. special phr.: ם(ה)עולם (ו)עד (ה)עולם (מן) from everlasting to everlasting, of י׳ ψ 90:2, חסד י׳ 103:17; benedictions 1 Ch 16:36 = ψ 106:48, Ne 9:5 1 Ch 29:10 ψ 41:14; the land given למן עולם ועד עולם Je 7:7; 25:5; מעתה ועד עולם from now and for ever ψ 115:18; 121:8 (i.e. as long as one lives); of people’s hope in God 131:3; dynasty of David Is 9:6; of God’s acts, words, etc. Mi 4:7 Is 59:21 ψ 125:2, cf. 113:2;—v. further i. עַד p. 723.
Brown, Francis; Driver, Samuel Rolles ; Briggs, Charles Augustus: [BDB] Enhanced Brown-Driver-Briggs Hebrew and English Lexicon. electronic ed. Oak Harbor, WA : Logos Research Systems, 2000, S. 761