4:20-23 The apostle ends with praises to God. We should look upon God, under all our weakness and fears, not as an enemy, but as a Father, disposed to pity us and help us. We must give glory to God as a Father. God's grace and favour, which reconciled souls enjoy, with the whole of the graces in us, which flow from it, are all purchased for us by Christ's merit, and applied by his pleading for us; and therefore are justly called the grace of our Lord Jesus Christ.

22. they that are of Cæsar's household—the slaves and dependents of Nero who had been probably converted through Paul's teaching while he was a prisoner in the Prætorian barrack attached to the palace. Philippi was a Roman "colony," hence there might arise a tie between the citizens of the mother city and those of the colony; especially between those of both cities who were Christians, converted as many of them were by the same apostle, and under like circumstances, he having been imprisoned at Philippi, as he now is at Rome.