1 Corinthians 3:3 - Matthew Poole's English Annotations on the Holy Bible

For ye are yet carnal; not wholly carnal, but in a great measure so, not having your lusts and corrupt affections entirely subdued to the will of God, nor yet so much subdued as some other Christians have, and you ought to have. As an evidence of this he mindeth them of the envying, strifes, and divisions that were amongst them. Strife and envyings are reckoned amongst the works of the flesh, Galatians 5:19-21; they are all opposite to love, in which the perfection of a Christian lieth. He told us before what strifes and contentions he meant, and tells us it again in the next verse.