1st. He is an earnest on the part of God, in that God gives him as a choice part of the inheritance itself, and of the same kind with the whole, as an earnest ought to be. The full inheritance promised, is the fulness of the Spirit in the enjoyment of God. When that Spirit which is given us in this world shall have perfectly taken away all sin and sorrow, and shall have made us able to enjoy the glory of God in his presence, that is the full inheritance promised. So that the Spirit given us for the fitting of us for enjoyment of God in some measure, whilst we are here, is the earnest of the whole.