II. "Thou shalt have a heart to say so." All God's other gifts to his people shall be crowned with this. He will give them grace to ascribe all the glory of them to him, and to speak of them upon all occasions with thankfulness to his praise. Thou shalt say, that is, thou oughtest to say so. In that day, when many are brought home to Jesus Christ and flock to him as doves to their windows, instead of envying the kind reception they find with Christ, as the Jews grudged the favour shown to the Gentiles, thou shalt say, O Lord! I will praise thee. Note, we ought to rejoice in, and give thanks for, the grace of God to others as well as to ourselves.