Charles H. Spurgeon on Psalms 131:2

As a child that is weaned of his mother. Weaned from the world, the riches, honours, pleasures, and profits of it; as well as from nature, from self, from his own righteousness, and all dependence upon it; and as a child that is weaned from the breast wholly depends on its nurse for sustenance, so did he wholly depend upon God, his providence, grace, and strength; and as to the kingdom, he had no more covetous desires after it than a weaned child has to the breast, and was very willing to wait the due time for the enjoyment of it. The Targum has it, "as one weaned on the breasts of its mother, I am strengthened in the law." This is to be understood not of a child whilst weaning, when it is usually peevish, fretful, and froward, but when it is weaned, and is quiet and easy in its mother's arms without the breast. —John Gill.