3. The work of this office is not left promiscuously among them, but several angels have their several works and charge; therefore Scripture telleth us of some sent on one message, and some on another;[192] and tells us that the meanest of Christ's members on earth have their angels before God in heaven: "I say unto you, that in heaven their angels do always behold the face of my Father which is in heaven," Matt. xviii. 10. Whether each true believer hath one or more angels? and whether one angel look to more than one believer? are questions which God hath not resolved us of, either in nature or Scripture; but that each true christian hath his angel, is here asserted by our Lord. 4. In this office of ministration they are servants of Christ as the Head of the church, and the Mediator between God and man, to promote the ends of his superior office in man's redemption.[193] Matt. xxviii. 18, "All power is given to me in heaven and earth;" John xiii. 3. Eph. i. 20-22, "And set him at his right hand in the celestials, far above all principality, and power, and might, and dominion, and every name that is named, not only in this world, but also in that which is to come, and hath put all things under his feet, and gave him to be head over all things to the church." Rev. xxiii. 16, "I Jesus have sent mine angel to testify unto you these things in the churches."[194] Whether the angels were appointed about the service of Adam in innocency; or only began their office with Christ the Mediator as his ministers, is a thing that God hath not revealed; but that they serve under Christ for his church is plain. 5. This care of the angels for us is exercised throughout our lives, for the saving of us from all our dangers, and delivering us out of all our troubles.[195] Psal. xxxiv. 6, 7, "This poor man cried, and the Lord heard him, and saved him out of all his troubles: the angel of the Lord encampeth about them that fear him, and delivereth them." Psal. xci. 11, 12, "For he shall give his angels charge over thee to keep thee in all thy ways: they shall bear thee up in their hand, lest thou dash thy foot against a stone." In all our ways, (that are good,) and in every step we tread, we have the care and ministry of tutelar angels. They are our ordinary defence and guard. 6. In all this ministry they perfectly obey the will of God,[196] and do nothing but by his command, Psal. ciii. 10; Zech. i. 8, 10; Matt. xviii. 10, being his messengers to man. 7. Much of their work is to oppose the malice of evil spirits that seek our heart, and to defend us from them;[197] against whom they are engaged under Christ in daily war or conflict, Rev. xii. 7, 9; Psal. lxi. 17; lxxviii. 49; Matt. iv. 11.