John Wesley on 2 Samuel 23:4

Shall be - These words are a farther description of the king's duty, which is not only to rule with justice and piety, but also with sweetness, and gentleness, and condescension to the infirmities of his people; to render his government as acceptable to them, as is the sun - shine in a clear morning, or the tender grass which springs out of the earth by the warm beams of the sun after the rain.