2 Thessalonians 3:10 uses the same wording: 'when we were with you' — directly parallel to Paul's reminder of previous instruction.

John 16:4 explains Jesus' purpose in telling in advance: so they would remember when the time comes — identical purpose as Paul's reminder here.

Acts 20:31 shows Paul reminding the Ephesian elders of his previous warnings — a parallel to his appeal here for the Thessalonians to remember his teaching.

2 Peter 1:15 expresses Peter's desire for them to recall his teaching after his departure — parallel to Paul's concern that they remember his words.

Galatians 5:21 shows Paul warning beforehand about consequences — a similar pattern of prior warning to be recalled later.