Original Verse:
2nd Timothy Chapter 2 Verse 13If we believe not, yet he abideth faithful: he cannot deny himself.

Reference Verses:
Romans Chapter 3 Verse 3For what if some did not believe? shall their unbelief make the faith of God without effect?
Numbers Chapter 23 Verse 19God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?
Titus Chapter 1 Verse 2In hope of eternal life, which God, that cannot lie, promised before the world began;
Hebrews Chapter 6 Verse 18That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us:
Deuteronomy Chapter 7 Verse 9Know therefore that the LORD thy God, he is God, the faithful God, which keepeth covenant and mercy with them that love him and keep his commandments to a thousand generations;
Isaiah Chapter 25 Verse 1O Lord, thou art my God; I will exalt thee, I will praise thy name; for thou hast done wonderful things; thy counsels of old are faithfulness and truth.
Matthew Chapter 24 Verse 35Heaven and earth shall pass away, but my words shall not pass away.
Romans Chapter 9 Verse 6Not as though the word of God hath taken none effect. For they are not all Israel, which are of Israel:
1st Thessalonians Chapter 5 Verse 24Faithful is he that calleth you, who also will do it.
2nd Thessalonians Chapter 3 Verse 3But the Lord is faithful, who shall stablish you, and keep you from evil.