Here we may notice, first, that concerning which the apostle expresses his assurance; and, second, the grounds of that assurance. First, that concerning which the apostle expresses his assurance: "Who also will do it." "My Father worketh hitherto," says Christ. God is ever doing; and if he were not, we should be for ever undone. Now this may refer,
(1) Sanctification. "The God of Peace," says the apostle, "sanctify you wholly." This God claims as his prerogative; "I am the Lord which sanctifieth you." His people, sensible that their own efforts, and all external means, without his blessing, will be ineffectual, apply to him for it.
(2) Preservation. God sanctifies those whom he will preserve, and preserves those whom he has sanctified; preserves from enemies, and from falling entirely, through the wilderness to the heavenly Canaan. The inheritance is kept for them, and they are kept for the inheritance.
(1) This may refer to that effectual calling whereby we are brought out of darkness into light, and from under the power of Satan into the kingdom of God's dear Son.
1. Whatever we do for God should be looked upon as the fruit of what he does for us, and therefore we have no reason to be proud of our best performances.
2. The great thing necessary to internal sanctification and all practical religion is our calling of God. Here God's work begins and here begins our working for God.
3. While saints rejoice let sinners tremble at God's faithfulness. As God is faithful to his promises so is he also to his threatenings. He is as unchangeable in his wrath as in his mercy.