course of nature (Zec. 12:1), but by the word of God. 1. That the gift may be the more valuable, Christ thought the promise of the Spirit a legacy worth leaving to his church. 2. That it may be the more sure, and that the heirs of promise may be confident of the immutability of God’s counsel herein. 3. That it may be of grace, peculiar grace, and may be received by faith, laying hold on the promise, and depending upon it. As Christ, so the Spirit, is received by faith. Secondly, It was the promise