Verse 1
PAUL DEFENDS HIS APOSTLESHIP
1) "Am I not an apostle?" (ouk eimi apostolos? From the following context this appears to be a rhetoric question suggesting an affirmative answer.
2) "Am I not free?" (ouk eimi elutheros?) In the previous chapter Paul had declared liberty of all from the Mosaic law, including himself, 1 Corinthians 8:8-9; 1 Corinthians 8:13; John 8:36; 1 Corinthians 7:22.
3) "Have I not seen Jesus Christ, our Lord?" (ouchi iesoun ton kurion hemon heoraka?) To be an apostle one requisite was that he must have seen the Lord, Acts 1:21-22; Acts 9:5; Acts 9:17; Acts 22:15-16.
4) "Are not ye my work in the Lord?" (ou to ergon Mou humeis este en kurio?) "Are ye not my work in the Lord?" As individuals won to Christ, and as a church he had taught, Paul addressed the Corinth brethren as "his work" in the Lord, 1 Corinthians 4:15.