Martin Luther on Psalms 125:4

Verse. 4. Do wel O Lord vnto them that be good & true of hart.

The Prophet sayth not here: doe well Lord to the perfect and such as offend in nothing: but to the good & true of hart. The good and true of heart are they which are of a single, sincere and vpright hart. For these are they which are most accepted of God, although they also through infirmitie doe sometimes offend. Now, where he prayeth that God will doe wel to the good and godly, he meaneth also and secretly complayneth that the godly are in miserie and affliction, and that the vngodly do abound with all worldly felicitie: As we see at this day the enemies of the Gospel to enioy great riches and dignities whereby they vexe & oppresse the godly. This is a great offence and stumbling blocke to the godly, and therefore the Church hath neede of this prayer: that God would doe well vnto the godly, which trust in him & seeke his glory with their whole hart, that they by stumbling at this offence do [illegible: 1 word] fal away to impietie. This prayer conteineth in it a prophecie with a promise, that like as he prayeth for the blessing, welfare & prosperitie of the iust, so at the length it shall also come to passe.