2 Thessalonians 2:13

But we ought to give thanks to God always for you, brethren, beloved by the Lord; because God, from the beginning, chose you to salvation, in sanctification of the Spirit and belief of truth;

Titus 1:2

upon hope of eternal life which God, Who cannot lie, promised before eternal times,

Hebrews 6:13

For God, when making a promise to Abraham, since He had no one greater by whom to swear, swore by Himself,

Hebrews 6:17

wherein God, more abundantly willing to show to the heirs of the promise the immutability of His counsel, 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 God, when making a promise to Abraham, since He had no one greater by whom to swear, swore by Himself,

That i will not lie

2 Thessalonians 2:13
But we ought to give thanks to God always for you, brethren, beloved by the Lord; because God, from the beginning, chose you to salvation, in sanctification of the Spirit and belief of truth;
Titus 1:2
upon hope of eternal life which God, Who cannot lie, promised before eternal times,