Palin (G3825) means again, once more, or back — indicating repetition, return, or reversal. It appears over 140 times in the NT and marks everything from repeated actions to the promised return of Christ.
The simplest word in the NT carries profound weight in eschatology: 'I will come again (palin)' (John 14:3) is Christ's own promise of His return. The entire Christian hope pivots on this palin. In John 21, the 'again' of restoration — Peter's reinstatement after denial — shows that divine second chances are real. Paul in Romans 15:10–12 strings together OT quotes all pointing to what God will do 'again' for the nations.