2 Thessalonians 2:13

We ought always to be thanking God for you, brothers dearly loved by the Lord, because God chose you from the beginning for salvation through the Spirit's consecration of you and through your faith in the truth,

Titus 1:2

in the hope of eternal life which God, who never lies, promised ages ago

Hebrews 6:13

For when God made His promise to Abraham, He took an oath by Himself, since He had no one greater by whom He could take it,

Hebrews 6:17

Therefore, because God wanted to make the strongest demonstration of the unchangeable character of His purpose, He interposed 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 made His promise to Abraham, He took an oath by Himself, since He had no one greater by whom He could take it,

That i will not lie

2 Thessalonians 2:13
We ought always to be thanking God for you, brothers dearly loved by the Lord, because God chose you from the beginning for salvation through the Spirit's consecration of you and through your faith in the truth,
Titus 1:2
in the hope of eternal life which God, who never lies, promised ages ago