ISB ~ Galatians 1 v14

traditions of my fathers:i.e., everything that comprised the Jewish way of life. This included biblical customs and institutions as well as Pharisaic practices that were devised to supplement and intensify the demands of the written Law (Mk 7:1-5). Paul studied under the famed Rabbi Gamaliel (Acts 22:3) and prided himself on a strict adherence to Jewish law (Phil 3:6).