Context: Paul is distressed to learn that the young church which he established at Corinth has become divided into factions, some claiming to be followers of Paul, others Apollos, and still others Cephas. Paul reminds the church that all believers are Christ's, and hence God's; it is presumptious folly to claim to be a spiritual follower of any man. The growth of the Church is due to the combined effort of different individuals, but without God it could not have its being:
Who then is Paul, and who is Apollos, but ministers by whom ye believed, even as the Lord gave to every man?
I have planted, Apollos watered; but God gave the increase.
So then neither is he that planteth any thing, neither he that watereth; but God that giveth the increase.