James 1:17

All good giving, and every perfect gift, comes down from above, from the Father of lights, with whom there is no change or shadow of turning.

Titus 1:2

for the hope of eternal life, which God who cannot lie announced before eternal ages,

Romans 11:29

for the gifts and calling of God are without a change of mind.

Hebrews 6:18

that by two immutable things, in which it is impossible for God to lie, we might have strong consolation, who fled to lay hold on the hope set before us,

Luke 21:33

Heaven and earth shall pass away, but my words shall not 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?

General references

Bible References

General references

Luke 1:57
And when Elizabeth's time to bear had fully come, she bore a son;
Acts 15:18
known from eternity.
Romans 11:29
for the gifts and calling of God are without a change of mind.