A Structure of I Corinthians 3:6-7:

Title: The Sower of the Word, and He Who Gives the Increase (note the words in A. planted & watered, and the words in B. gave & increase)

(An Alternation Structure*)

A.| verse 6a, I have planted, Apollos watered.  (they sowed the Word of God)

    B.| verse 6b, God gave the increase. (but God makes the sown Word grow)

A.| verse 7a, Neither is he that planted anything nor he that watered. (it is the Word that makes someone a somebody)

    B.| verse 7b, God gives the increase. (because God makes the sown Word grow)

*As illustrated in the E-book series, Geneses (chapter eight), written by ~LMJ~