Howbeit Jesus suffered him not,.... He being as able to preserve him from those evil spirits, when absent, as present; and besides, to take him along with him, would look like ostentation and boasting, which Christ was averse unto; and more especially, as is clear from what follows, he chose he should stay behind, because he had work for him to do in those parts, which would be for the glory of God, the spread of the knowledge of himself, and his Gospel, among his friends, relations, and countrymen: wherefore it follows,but saith unto him, go home to thy friends, and tell them how great things the Lord hath done for thee, and hath had compassion on thee: he bids him go to his "own house", as it is in Luke, Lu 8:39 to the place of his former abode; to the town, or city, where he before dwelt, and where his father and mother, brethren and sisters, wife and children might live; and there relate to them what great things the Lord, or God, as the Ethiopic version reads, had done for him; by casting out a legion of devils from him, and had restored him to his perfect senses and health, and had had compassion on him, both as of his soul and body, and had wrought a great salvation for him.
So such as are called by grace, and are turned from darkness to light; and from the power of Satan unto God, ought to go, to their Christian friends, and to the church of God, and declare in Zion the great things which God has done for their souls; in enlightening, quickening, converting, and comforting them, to the glory of his rich mercy, and abundant grace.
They are "great things" indeed which the Lord has done for his people: he has done great things for them in eternity; he has loved then with an everlasting love; he has chosen them in his Son to holiness and happiness; he has made a covenant with him, for them, full of spiritual blessings and promises; he has provided him, as a Saviour, for them, and has appointed, and called him to that work; all which is more or less made known to them in the effectual calling, when they receive the Spirit of God, that they may know the things which are freely given to them of God.
The Lord Jesus Christ has done great things for them, as before time, by engaging for them as their surety; so, in time, by taking upon him their nature, by bearing their sins, and suffering in their room and stead, thereby working out a great salvation, which, in conversion, is brought near, and applied unto them.
And the Lord, the Spirit, does great things for them, when he calls them by his grace, and afterwards; in opening their eyes who were born blind, and who otherwise must have lift them up in hell; and in bringing them into the marvellous light of, the Gospel; in quickening them, when dead in trespasses and sins, who otherwise must have died the second death; in causing them, to hear the voice of Christ in the joyful sound of the word, who otherwise must have heard the curses of a righteous law; in taking away their stony hearts, and giving them hearts, of flesh; in rescuing them out of Satan's hands; in leading them to Christ for righteousness, life, and salvation; in discovering pardoning grace and mercy to them, through the blood of Christ; in delivering out of many and great temptations; in applying great and precious promises, suitably and seasonably; and in restoring them when backslidden, and speaking comfortably to them; in witnessing to their spirits, their adoption; and in sealing them up to the day of redemption; and all this flows from divine "compassion", and not from any motive and merit in the creature.
It was sovereign pity and compassion; the Lord "has mercy on whom he will have mercy, and has compassion on whom he will have compassion", Ro 9:15.