Mark 16:15-18

(15) And he said unto them; Go ye into all the world, and preach the gospel to every creature. (16) He that believeth and is baptized shall be saved; but he that believeth not shall be damned. (17) And these signs shall follow them that believe: In my name shall they cast out devils; they shall speak with new tongues; (18) They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover.

It should seem, from the relation of this final commission the LORD gave to his disciples, that it was not all delivered at this morning and evening of the day of his resurrection, but in the different meetings which JESUS graciously made with them during the forty days he went in and out before them, to the day he returned to glory. And the commission itself of going into the whole of the then known world, and preaching the Gospel to every creature, carried with it the full glorious tidings of salvation in his blood, and righteousness both to Jew and Gentile. See Isaiah 49:1. And while the LORD thus taught them that the door of salvation was to be opened to the people of GOD, which were scattered abroad, the Gospel itself implied that CHRIST himself in his person, work, grace, blood-shedding, and righteousness, became JEHOVAH's one and only ordinance of salvation, to everyone which believeth; to the Jew first, and also to the Gentile. CHRIST in himself is comprehensive of the whole Gospel. In Matthew's relation of this, it is added, they were to baptize the people, in the joint name of the FATHER, SON, and HOLY GHOST, intimating thereby, that to the joint love, and grace, and mercy, of the HOLY THREE in ONE, the whole blessings of redemption flow. See 1 Peter 1:2, compared with Numbers 6:22, to the end. 2 Corinthians 13:14.