Ἰουδαϊσμός

Galatians 1:13 Ἰουδαϊσμῷ Judaism

For you have heard of my former way of life in Judaism, how severely I persecuted the church of God and tried to destroy it.

Galatians 1:14 Ἰουδαϊσμῷ Judaism

I was advancing in Judaism beyond many of my contemporaries and was extremely zealous for the traditions of my fathers.