Jesus is certainly God and equal with His Father. He did however submit to the authority of the Father in doing His will perfectly. In the Old Testament, He was a messenger at times, to carry out the Father's will to tell Abraham the message of the coming judgement upon the cities of Sodom and Gomorrah. Abraham asked for The Lord to spare it for sake of the family who dwelt there. Lot's family was rescued before the Lord Jesus brought His judgement upon the cities of fire and brimstone.
So, in as far as someone who acts as a messenger, He fulfilled that roll. How?
Messenger and Angel are the same. Two different words that mean the same thing.
The difference between Jesus and the creatures named Angels is that Jesus is not a created being. Jesus, the Father and the Son all existed forever before. Jesus is Almighty God and created the universe.
Hebrew 1 explains this. He does not call the angels His Son. Then it explains how He brought Him to the world ( through miraculous conception
without Mary knowing the Father in the same sense as is natural among husband and wife.) She was a virgin yet when He was to be born. He was called by the Father, "
8But unto the Son he saith, Thy throne, O God, is for ever and ever..."
"
5For unto which of the angels said he at any time, Thou art my Son, this day have I begotten thee? And again, I will be to him a Father, and he shall be to me a Son?
6And again, when he bringeth in the firstbegotten into the world, he saith, And let all the angels of God worship him.
7And of the angels he saith, Who maketh his angels spirits, and his ministers a flame of fire.
8But unto the Son he saith, Thy throne, O God, is for ever and ever: a sceptre of righteousness is the sceptre of thy kingdom.
You see here that the Father even calls Jesus God.
Does that make sense?