Numbers 23:19

God is not a man, that he should lie; neither a son of man, that he should repent. Shall he say and not do? and shall he speak and not make it good?

1 Samuel 15:29

And also the Hope of Israel will not lie nor repent; for he is not a man, that he should repent.

Malachi 3:6

For I Jehovah change not, and ye, sons of Jacob, are not consumed.

James 1:17

Every good gift and every perfect gift comes down from above, from the Father of lights, with whom is no variation nor shadow of turning.

Titus 1:2

in the hope of eternal life, which God, who cannot lie, promised before the ages of time,

Romans 11:29

For the gifts and the calling of God are not subject to repentance.

Hebrews 6:18

that by two unchangeable things, in which it was impossible that God should lie, we might have a strong encouragement, who have fled for refuge to lay hold on the hope set before us,

1 Chronicles 17:17

And this hath been a small thing in thy sight, O God; and thou hast spoken of thy servant's house for a great while to come, and hast regarded me according to the rank of a man of high degree, Jehovah Elohim.

Psalm 89:35

Once have I sworn by my holiness; I will not lie unto David:

Hosea 11:9

I will not execute the fierceness of mine anger, I will not again destroy Ephraim; for I am God, and not man, the Holy One in the midst of thee: and I will not come in anger.

Micah 7:20

Thou wilt perform truth to Jacob, loving-kindness to Abraham, which thou hast sworn unto our fathers, from the days of old.

Habakkuk 2:3

For the vision is yet for an appointed time, but it hasteth to the end, and shall not lie: though it tarry, wait for it; for it will surely come, it will not delay.

Luke 21:33

The heaven and the earth shall pass away, but my words shall in no wise pass away.

Treasury of Scripture Knowledge

Summary

God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?

Bible References

Or hath he

1 Chronicles 17:17
And this hath been a small thing in thy sight, O God; and thou hast spoken of thy servant's house for a great while to come, and hast regarded me according to the rank of a man of high degree, Jehovah Elohim.
Micah 7:20
Thou wilt perform truth to Jacob, loving-kindness to Abraham, which thou hast sworn unto our fathers, from the days of old.

General references

Joshua 21:45
There failed nothing of all the good things that Jehovah had spoken to the house of Israel: all came to pass.
Daniel 4:28
All this came upon king Nebuchadnezzar.
Luke 1:57
But the time was fulfilled for Elizabeth that she should bring forth, and she gave birth to a son.
Acts 15:18
known from eternity.
Romans 11:29
For the gifts and the calling of God are not subject to repentance.