Matthew Henry on Mark 10:23-31

Christ took this occasion to speak to his disciples about the difficulty of the salvation of those who have abundance of this world. Those who thus eagerly seek the wealth of the world, will never rightly prize Christ and his grace. Also, as to the greatness of the salvation of those who have but little of this world, and leave it for Christ. The greatest trial of a good man's constancy is, when love to Jesus calls him to give up love to friends and relatives. Even when gainers by Christ, let them still expect to suffer for him, till they reach heaven. Let us learn contentment in a low state, and to watch against the love of riches in a high one. Let us pray to be enabled to part with all, if required, in Christ's service, and to use all we are allowed to keep in his service.