For thou shalt heap coals of fire upon his head, and the LORD shall reward thee.
Ver. 22. For thou shalt heap coals of fire.] By heaping courtesies upon him, thou shalt win him over to thyself, as the king of Israel did those Syrians he feasted. They came no more after that by way of ambush or incursion into the bounds of Israel. In doing some good to our enemies, we do most to ourselves.
And the Lord shall reward thee.] However men deal with thee. It may be they may prove dross that will not be melted, dirt that will not be mollified, but moulder to nothing, crumble to crattle as stones, &c., as having no metal of ingenuity or good nature in them. But desist not, despond not; "God will reward thee," and his retributions are more than bountiful. Or, as the words may be read, "God will pacify for thee," as he did Saul for David. Never did a charitable act go away without a blessing. God cannot but love in us this imitation of his mercy, who bids his sun to shine upon the evil and unthankful, and that love is never fruitless.