We find in the Acts of the Apostles that the very first sermon that was preached at Pentecost by Peter all turns upon this phrase. He quotes the Old Testament saying, 'Whosoever shall call on the name of the Lord shall be saved,' and then goes on to prove that 'the Lord,' the 'calling on whose Name' is salvation, is Jesus Christ; and winds up with 'Therefore let all the house of Israel know assuredly that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.' Again we find that Ananias of Damascus, when Jesus Christ appeared to him and told him to go to Paul and lay his hands upon him, shrank from the perilous task because Paul had been sent to 'bind them that call upon the name of the Lord,' and to persecute them. We find the same phrase recurring in other connections, so that, on the whole, we may take the expression as a recognised designation of Christians. This was their characteristic, that they prayed to Jesus Christ. The very first word, so far as we know, that Paul ever heard from a Christian was, 'Lord Jesus! receive my spirit.' He heard that cry of calm faith which, when he heard it, would sound to him as horrible blasphemy from Stephen's dying lips. How little he dreamed that he himself was soon to cry to the same Jesus, 'Lord, what wilt thou have me to do?' and was in after-days to beseech Him thrice for deliverance, and to be answered by sufficient grace. How little he dreamed that, when his own martyrdom was near, he too would look to Jesus as Lord and righteous Judge, from whose hands all who loved His appearing should receive their crown! Nor only Paul directs desires and adoration to Jesus as Lord; the last words of Scripture are a cry to Him as Lord to come quickly, and an invocation of His 'grace' on all believing souls. Prayer to Christ from the very beginning of the Christian Church was, then, the characteristic of believers, and He to whom they prayed, thus, from the beginning, was recognised by them as being a Divine Person, God manifest in the flesh.