Albert Barnes Commentary John 5:20

"For the Father loveth the Son, and showeth him all things that himself doeth: and greater works than these will he show him, that ye may marvel." — John 5:20 (ASV)

The Father loves the Son. This authority he traces to the love which the Father has for him—that peculiar, ineffable, infinite love which God has for his only-begotten Son, feebly and dimly illustrated by the love which an earthly parent has for an only child.

Shows him. Makes him acquainted with. Conceals nothing from him. From apostles, prophets, and philosophers no small part of the doings of God are concealed. From the Son nothing is. And as God shows him all that he does, he must be possessed of omniscience, for to no finite mind could be imparted a knowledge of all the works of God.

Will show Him. Will appoint and direct him to do greater works than these.

Greater works than these. Than healing the impotent man, and commanding him to carry his bed on the Sabbath-day. The greater works to which he refers are those which he proceeds to specify—he will raise the dead and judge the world, etc.

May marvel. May wonder, or be amazed.