Nothing in Genesis remotely hints at canopy theory as described by YECs, regardless of what they say "God's Word says". If you want a good exegesis of what the Hebrew usage of "firmament" actually means, check out the following article by theologian Denis Lamoureux:
http://www.asa3.org/ASA/PSCF/2008/PSCF3-08Lamoureux.pdf
"Theologians" rejected Jesus and had Him crucified as an imposter.
Give me Isaac Mozeson if I need to clear up a difficulty, but do not give me a theologian -they have left an odour unpleasant in the world -they stink!
I already know what God's Word says about a firmament. There is no difficulty.
1) extended surface (solid), expanse, firmament
a) expanse (flat as base, support)
b) firmament (of vault of heaven supporting waters above)
1) considered by Hebrews as solid and supporting 'waters' above
firmament is from the word raqa`1) to beat, stamp, beat out, spread out, stretch
Gen 1:7 And God made the firmament/expanse, and divided the waters which [were] under the firmament from the waters which [were] above the firmament: and it was so.
Gen 1:8 And God called the firmament Heaven. And the evening and the morning were the second day.
Gen 1:14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
Gen 1:15 And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so.
Gen 1:16 And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: [he made] the stars also.
Gen 1:17 And God set them in the firmament of the heaven to give light upon the earth,
Gen 1:20 And God said, Let the waters bring forth abundantly the moving creature that hath life, and fowl [that] may fly above the earth in the open/face firmament of heaven.
Enoch’s visit to the created temple which is set in the created sun in the heaven/firmament:
1 Enoch 14
Behold, in the vision clouds invited me and a mist summoned me, and the course of the stars and the lightnings sped and hastened me, and the winds in 9 the vision caused me to fly and lifted me upward, and bore me into heaven.
And I went in till I drew nigh to a wall which is built of crystals and surrounded by tongues of fire: and it began to affright 10 me. And I went into the tongues of fire and drew nigh to a large house which was built of crystals: and the walls of the house were like a tesselated floor (made) of crystals, and its groundwork was 11 of crystal.
Its ceiling was like the path of the stars and the lightnings, and between them were 12 fiery cherubim, and their heaven was (clear as) water. A flaming fire surrounded the walls, and its 13 portals blazed with fire.
And I entered into that house, and it was hot as fire and cold as ice: there 14 were no delights of life therein: fear covered me, and trembling got hold upon me. And as I quaked 15 and trembled, I fell upon my face. And I beheld a vision, And lo! there was a second house, greater 16 than the former, and the entire portal stood open before me, and it was built of flames of fire. And in every respect it so excelled in splendour and magnificence and extent that I cannot describe to 17 you its splendour and its extent.
And its floor was of fire, and above it were lightnings and the path 18 of the stars, and its ceiling also was flaming fire. And I looked and saw therein a lofty throne: its appearance was as crystal, and the wheels thereof as the shining sun, and there was the vision of 19 cherubim.
And from underneath the throne came streams of flaming fire so that I could not look 20 thereon. And the Great Glory sat thereon, and His raiment shone more brightly than the sun and 21 was whiter than any snow.
None of the angels could enter and could behold His face by reason 22 of the magnificence and glory and no flesh could behold Him.
The flaming fire was round about Him, and a great fire stood before Him, and none around could draw nigh Him: ten thousand times 23 ten thousand (stood) before Him, yet He needed no counselor. And the most holy ones who were 24 nigh to Him did not leave by night nor depart from Him. And until then I had been prostrate on my face, trembling: and the Lord called me with His own mouth, and said to me: ' Come hither, 25 Enoch, and hear my word.' And one of the holy ones came to me and waked me, and He made me rise up and approach the door: and I bowed my face downwards.
From Mozeson's dictionary,
The Word, on the root etymons for "firmament"
RACK RaQeeYGHah Resh-Koof-Ayin
... RaQ[A]h is to stretch (Isaiah 42:25). In Isaiah, as in Genesis 1:6, we have the Lord stretching out the RaQeeYGHah (firmament, heaven - the RACK or framework of the world).