Passage
if we are unfaithful, *he* abides faithful, for he cannot deny himself.
if we are unfaithful, *he* abides faithful, for he cannot deny himself.
2 Timothy 2:11 The word [is] faithful; for if we have died together with [him], we shall also live together;
2 Timothy 2:12 if we endure, we shall also reign together; if we deny, *he* also will deny us;
2 Timothy 2:13 if we are unfaithful, *he* abides faithful, for he cannot deny himself.
2 Timothy 2:14 Of these things put in remembrance, testifying earnestly before the Lord not to have disputes of words, profitable for nothing, to the subversion of the hearers.
2 Timothy 2:15 Strive diligently to present thyself approved to God, a workman that has not to be ashamed, cutting in a straight line the word of truth.
The verse centers on "faith", "unfaithful", "abides", "deny", and "himself". It is saying that the verse draws attention to "faith" and "unfaithful", 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 in remembrance testifying...", so "faith" and "unfaithful" 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 "unfaithful" with trust shaped by these words, not by a vague optimism outside the passage.