John Gill Commentary John 1:2

"The same was in the beginning with God." — John 1:2 (ASV)

The same was in the beginning with God .
] This is a repetition of what is before said, and is made to show the importance of the truths before delivered; namely, the eternity of Christ, his distinct personality, and proper deity; and that the phrase, in the beginning, is to be joined to each of the above sentences; and so proves, not only his eternal existence, but his eternal existence with the Father, and also his eternal deity.

And is also made to carry on the thread of the discourse, concerning the word, and not God the Father; and to express, not only his co-existence in nature, but his co-operation in the works of creation next mentioned.