I. "Thou shalt have cause to say so." The promise is sure, and the blessings contained in it are very rich, and, when they are bestowed, will furnish the church with abundant matter for rejoicing and therefore with abundant matter for thanksgiving. The Old-Testament prophecies of gospel times are often expressed by the joy and praise that shall then be excited; for the inestimable benefits we enjoy by Jesus Christ require the most elevated and enlarged thanksgivings.