Jesus - Sickness
Hebrews 4:15-16
[15] For we do not have a high priest who is unable to sympathize with our weaknesses, but one who in every respect has been tempted as we are, yet without sin. [16] Let us then with confidence draw near to the throne of grace, that we may receive mercy and find grace to help in time of need.
Jesus experienced every weakness that we do, including sickness.
“Belgic Confession 18, entitled “The Incarnation of Jesus Christ,” declares that God’s “only-begotten and eternal Son ... took upon Him the form of a servant, and became like unto man, really assuming the true human nature, with all its infirmities, sin excepted.” Notice the word “all,” in the phrase “all [our] infirmities.” That must include sicknesses for it is one of our infirmities.
The texts referred to in Belgic Confession 18 include Hebrews 2:14-15: “Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil; And deliver them who through fear of death were all their lifetime subject to bondage.”
Heidelberg Catechism, Lord’s Day 14, in explaining part of the Apostles’ Creed, says, “That God’s eternal Son, who is and continueth true and eternal God, took upon Him the very nature of man, of the flesh and blood of the Virgin Mary, by the operation of the Holy Ghost; that He might also be the true seed of David, like unto His brethren in all things, sin excepted.” One verse quoted is Philippians 2:7: “But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men.” The next text Lord’s Day 14 cites is Hebrews 4:15: “For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are, yet without sin.”
What I have explained in the News has been the teaching of the churches of the Reformation for the last 500 years. It is not my idea, but part of the heritage of the truth.” - http://www.prca.org/resources/publications/articles/item/4963-could-christ-be-sick