Verse 15

We who are

Paul here quotes from his words to Peter when he withstood him at Antioch to show the Galatians that, whatever the legalists may have pretended, Peter and he were in perfect accord doctrinally. Paul appealed to the common belief of Peter and himself as a rebuke of Peter's inconsistent practice.

sinners Sin. (See Scofield "Romans 3:23").

Verse 17

we seek

That is, "we" Jews. Romans 3:19-23. The passage might be thus paraphrased: If we Jews, in seeking to be justified by faith in Christ, take our places as mere sinners, like the Gentiles, is it therefore Christ who makes us sinners? By no means. It is by putting ourselves again under law after seeking justification through Christ, that we act as if we were still unjustified sinners, seeking to become righteous through law-works. Galatians 5:1-4.

sinners Sin. (See Scofield "Romans 3:23").

Verse 18

transgressor

Sin. (See Scofield "Romans 3:23").

Verse 20

not I

See note, (See Scofield "Ephesians 4:24").

Verse 21

grace Grace (in salvation). vs. Galatians 5:4; Romans 3:24. (See Scofield "John 1:17").

righteousness (See Scofield "Romans 10:10").

Galatians 1

Galatians

Galatians 3

Galatians 2". galatians-2

 worlddic.com