Psalm 89:35

Once and for all
I have sworn an oath by My holiness;
I will not lie to David.

Amos 4:2

The Lord God has sworn by His holiness:

Look, the days are coming
when you will be taken away with hooks,
every last one of you with fishhooks.

Psalm 110:4

The Lord has sworn an oath and will not take it back:
“Forever, You are a priest
like Melchizedek.”

Psalm 132:11

The Lord swore an oath to David,
a promise He will not abandon:
“I will set one of your descendants
on your throne.

Amos 8:7

The Lord has sworn by the Pride of Jacob:

I will never forget all their deeds.

2 Thessalonians 2:13

But we must always thank God for you, brothers loved by the Lord, because from the beginning God has chosen you for salvation through sanctification by the Spirit and through belief in the truth.

Titus 1:2

in the hope of eternal life that God, who cannot lie, promised before time began.

Hebrews 6:13

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

Hebrews 6:17

Because God wanted to show His unchangeable purpose even more clearly to the heirs of the promise, He guaranteed it 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

Psalm 110:4
The Lord has sworn an oath and will not take it back:
“Forever, You are a priest
like Melchizedek.”
Psalm 132:11
The Lord swore an oath to David,
a promise He will not abandon:
“I will set one of your descendants
on your throne.
Amos 4:2
The Lord God has sworn by His holiness:

Look, the days are coming
when you will be taken away with hooks,
every last one of you with fishhooks.
Amos 8:7
The Lord has sworn by the Pride of Jacob:

I will never forget all their deeds.
Hebrews 6:13
For when God made a promise to Abraham, since He had no one greater to swear by, He swore by Himself:

That i will not lie

2 Thessalonians 2:13
But we must always thank God for you, brothers loved by the Lord, because from the beginning God has chosen you for salvation through sanctification by the Spirit and through belief in the truth.
Titus 1:2
in the hope of eternal life that God, who cannot lie, promised before time began.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.