5. God here, as elsewhere, connects with the symbol doctrine, which is as it were its soul, without which it would be not only cold and frivolous, but even dead [Calvin]. God's mention of His supreme power is in order to refute the pride of those who rely on their own power (Isa 45:12).
given it unto whom it seemed meet unto me—(Ps 115:15, 16; Da 4:17, 25, 32). Not for his merits, but of My own sole good pleasure [Estius].