Charles H. Spurgeon on Psalms 36:10

Continue thy lovingkindness. When God begins once to let out mercy to his servants, he stints not presently, but proceeds. ...When Rachel had her first son, she called his name Joseph, which signifieth adding, or increase; for she said, "The Lord shall add to me another son." Ge 30:24. Now God hath begun to show kindness, he shall not only give me this, but he shall give me another son also. When the Lord hath bestowed one mercy on you, you may name it Joseph, increase, addition, for God will bestow another upon you. Abraham had many mercies from God, one after another; and Moses, a multitude of mercies; he converses with God face to face; he hears God speak; he has God's presence to go along with him; yea, he sees all God's goodness and glory to pass before him. When mercies come forth, God will not presently shut the door of mercy again. Continue thy lovingkindness. The Hebrew is, draw forth, or draw out thy lovingkindness: a metaphor either taken from vessels of wine, which being set abroach once, yield not only one cup, but many cups; so when God setteth abroach the wine of his mercy, he will not fill your cup once, but twice and seven times: or, taken from a mother, who hath her breasts full of milk, draws them out for her child, not once, but often; the child shall have the breast many times in the day, and many times in the night, so when God begins to show mercy to you, he will draw out his breasts of consolation, and will bestow mercy after mercy upon you; or, from a line which is extended, for so God being in a way of mercy, will extend the line of mercy, and measure out mercy after mercy for you. William Greenhill.