Passage
if we are faithless, he abideth faithful; for he cannot deny himself.
if we are faithless, he abideth faithful; for he cannot deny himself.
2 Timothy 2:11 Faithful is the saying: For if we died with him, we shall also live with him:
2 Timothy 2:12 if we endure, we shall also reign with him: if we shall deny him, he also will deny us:
2 Timothy 2:13 if we are faithless, he abideth faithful; for he cannot deny himself.
2 Timothy 2:14 Of these things put them in remembrance, charging [them] in the sight of the Lord, that they strive not about words, to no profit, to the subverting of them that hear.
2 Timothy 2:15 Give diligence to present thyself approved unto God, a workman that needeth not to be ashamed, handling aright the word of truth.
The verse centers on "faith", "faithless", "abideth", "faithful", "deny", and "himself". It is saying that the verse draws attention to "faith" and "faithless", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 12's "if we endure we shall also reign..." into verse 14's "Of these things put them in remembrance...", so "faith" and "faithless" belong inside that flow. In 2 Timothy context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "faith" and "faithless" with trust shaped by these words, not by a vague optimism outside the passage.