i hate to rain on everybody's parade, but everybody is wrong! what a minister says over a baptismal candidate by invocation is more traditional than biblical. The bible commands the believer to call on the name of the Lord. When Paul was baptized, he was told to go call on the name of the Lord for himself. On the day of pentecost, every believer baptized themselves in the cleansing pools calling on the name of the Lord.
Romans 10:8 But what saith it? The word is nigh thee, even in thy mouth, and in thy heart: that is, the word of faith, which we preach; 9That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. 10For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. 11For the scripture saith, Whosoever believeth on him shall not be ashamed.
Acts 22:12 And one Ananias, a devout man according to the law, having a good report of all the Jews which dwelt there, 13Came unto me, and stood, and said unto me, Brother Saul, receive thy sight. And the same hour I looked up upon him. 14And he said, The God of our fathers hath chosen thee, that thou shouldest know his will, and see that Just One, and shouldest hear the voice of his mouth. 15For thou shalt be his witness unto all men of what thou hast seen and heard. 16And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord.
This doctrine about what somebody says over you is from catholicism and the doctrine of substantiation, or the minsiter taking the place of the candidate. Each beliver is commanded to call on the name of the Lord for themselves!!! Anything that is not of faith is sin and if it does not come from the heart of the believer, it has no value. New testament baptism was tied to the mosaic law of cleasing and identification for new belivers.