2 Thessalonians 2:13

But for you, brothers, whom the Lord loves, I ought to give thanks to God continually, because God has chosen you from the beginning for salvation in consecration of the Spirit and belief of the truth.

Titus 1:2

I write in hope of life eternal which God who never lies, promised before times eternal,

Hebrews 6:13

For when God make the promise to Abraham, since he could swear by none greater, he swore by himself, saying.

Hebrews 6:17

On which principle God, wishing to show more convincingly to the heirs of the promise the immutability of his purpose, mediated with an oath;

Treasury of Scripture Knowledge

Summary

Once have I sworn by my holiness that I will not lie unto David.

That i will not lie

Bible References

Once

Hebrews 6:13
For when God make the promise to Abraham, since he could swear by none greater, he swore by himself, saying.

That i will not lie

2 Thessalonians 2:13
But for you, brothers, whom the Lord loves, I ought to give thanks to God continually, because God has chosen you from the beginning for salvation in consecration of the Spirit and belief of the truth.
Titus 1:2
I write in hope of life eternal which God who never lies, promised before times eternal,