Do you seriously think the only things people ask of God are related to stuff in the bible?
??? Where, exactly, did I say that they did?
How do you think all those who God spoke to heard him speak? The scripture is full, end to end of God speaking into people's hearts.
Uh huh. Scripture, please. What does it mean, precisely, for God to "speak to one's heart"?
No, you are the one who is reading into those verses your doctrine of unbelief
You're entitled to your opinion.
And countless other examples where there is no clear writing on the wall etc.
"Countless"? Rhetorical hyperbole isn't helping your case any. Scripture, please.
The doctrine of the Trinity has no clear specific teaching either, but is gleaned by extrapolation of different verses. Likewise hearing God speak today.
Equivocation. The doctrine of the Trinity is not equivalent to your doctrine of God speaking to you in your head (or heart, whichever). The
term "Trinity" is not used in Scripture but the trinitarian nature of God to which the term refers is plainly laid out in the Bible. But this isn't the situation with your God-talks-to-me stuff. There's no absent-from-Scripture
term that is at issue, but
an entire view of how God typically communicates to us.
Here is the OT speaking.
Psalm95v7............Today, if you hear His voice,8do not harden your hearts as you did at Meribah,
And here is the NT repeating it and reinforcing it.
Hebrews3v7“Today if you should hear His voice, 8do not harden your hearts, as in the rebellion,
And to make sure you are paying attention he says it again-
Hebrews3v15As it is said: “Today if you should hear His voice, do not harden your hearts, as in the rebellion.”
Obviously Paul knew that some would block their ears, so for the 3rd time-
Hebrews4v7again He appoints a certain day as “Today,” saying through David after so long a time, just as it has been said, “Today, if you shall hear His voice, do not harden your hearts.”
If scripture says something three times in a row, I tend to take notice, and these verses are clearly about hearing the voice of the Lord, not reading or learning the scriptures.
More equivocation. The three Scripture references you've offered refer either to the events of
Exodus 17:1-7 where the thirsty, grumbling Israelites doubted God, or of
Numbers 13-14 when the Israelites found themselves doubting God at the border of Canaan, the Promised Land He had given to them. None of your three Scripture quotations are referring to hearing God speak directly to oneself in one's mind. In both OT instances, God spoke to Israel chiefly
through Moses who heard from God in a very direct but external manner:
Numbers 12:4-9
4 And suddenly the LORD said to Moses and to Aaron and Miriam, “Come out, you three, to the tent of meeting.” And the three of them came out.
5 And the LORD came down in a pillar of cloud and stood at the entrance of the tent and called Aaron and Miriam, and they both came forward.
6 And he said, “Hear my words: If there is a prophet among you, I the LORD make myself known to him in a vision; I speak with him in a dream.
7 Not so with my servant Moses. He is faithful in all my house.
8 With him I speak mouth to mouth, clearly, and not in riddles, and he beholds the form of the LORD. Why then were you not afraid to speak against my servant Moses?”
9 And the anger of the LORD was kindled against them, and he departed.
Not only was it confirmed by God Himself in this passage that He spoke to Moses "mouth-to-mouth, beholding the form of the Lord" and through Moses to the people of Israel, but God spoke directly, out-loud to Aaron and Miriam, too, and explained that to His prophets His communication was through dreams and visions. There is, though, no mention of secret, direct-to-mind divine speaking.
What's more, in context, "hearing God's voice" in the three references you've offered has to do with
having faith in Him, in His promises, not about literally hearing God's voice in your head. Here's one of the verses in its immediate context:
Hebrews 3:12-15
12 Take care, brothers, lest there be in any of you an evil, unbelieving heart, leading you to fall away from the living God.
13 But exhort one another every day, as long as it is called “today,” that none of you may be hardened by the deceitfulness of sin.
14 For we have come to share in Christ, if indeed we hold our original confidence firm to the end.
15 As it is said, “Today, if you hear his voice, do not harden your hearts as in the rebellion.”
And just to make it crystal clear, the writer of Hebrews writes:
Hebrews 3:19
19 So we see that they were unable to enter because of unbelief.
Hebrews 4:1-3
1 Therefore, while the promise of entering his rest still stands, let us fear lest any of you should seem to have failed to reach it.
2 For good news came to us just as to them, but the message they heard did not benefit them, because they were not united by faith with those who listened.
3 For we who have believed enter that rest...
Hebrews 3:15, then, is not about actually hearing God's voice inside one's head, but about believing His promises so as to enter His rest. You have here made my point for me about eisegesis, doing exactly what so many others of your persuasion do with God's word.
