2 Samuel 7:28

Now, O Lord God, You are God, and Your words are truth, and You have promised this good thing to Your servant.

John 17:17

Sanctify them in the truth; Your word is truth.

Exodus 34:6

Then the Lord passed by in front of him and proclaimed, “The Lord, the Lord God, compassionate and gracious, slow to anger, and abounding in lovingkindness and truth;

Numbers 23:19

God is not a man, that He should lie,
Nor a son of man, that He should repent;
Has He said, and will He not do it?
Or has He spoken, and will He not make it good?

Titus 1:2

in the hope of eternal life, which God, who cannot lie, promised long ages ago,

Treasury of Scripture Knowledge

Summary

And now, O Lord GOD, thou art that God, and thy words be true, and thou hast promised this goodness unto thy servant:

Bible References

Thy words

Numbers 23:19
God is not a man, that He should lie,
Nor a son of man, that He should repent;
Has He said, and will He not do it?
Or has He spoken, and will He not make it good?
John 17:17
Sanctify them in the truth; Your word is truth.
Titus 1:2
in the hope of eternal life, which God, who cannot lie, promised long ages ago,