3. Those that were melancholy shall become cheerful and pleasant (v. 19): The meek also shall increase their joy in the Lord. Those who are poor in the world and poor in spirit, who, being in affliction, accommodate themselves to their affliction, are purely passive and not passionate, when they see God appearing for them, they shall add, or repeat, joy in the Lord. This intimates that even in their distress they kept up their joy in the Lord, but now they increased it. Note, Those who, when they are in trouble, can truly rejoice in God, shall soon have cause given them greatly to rejoice in him. When joy in the world is decreasing and fading joy in God is increasing and getting round. This shining light shall shine more and more; for that which is aimed at is that this joy may be full. Even the poor among men may rejoice in the Holy One of Israel, and their poverty needs not deprive them of that joy, Hab. iii. 17, 18. And the meek, the humble, the patient, and dispassionate, shall grow in this joy. Note, The grace of meekness will contribute very much to the increase of our holy joy.