1 Timothy 5:12
Cast of first faith ... set aside their previous pledge, NASV "become guilt of breaking their earlier promise to him" GNB
Roman Catholic -- background for pledges or commitment by nuns. (but young one forbidden!)
Probably a reference to the confession made at the point of conversion.
Confession:1) Identity .. Matthew 16:162) Lordship .. Phi 2:11 Romans 10:9
Confession was a far greater commitment in the first century than seems to be made today at baptism.
One became an endentured slave.
Slaves - Some born into a household as slave; some made themselves servants for time to pay debts. Some then volunteered to serve for life, and were branded like the slaves who were born into slavery. See Galatians 6:17 Paul considered his scars as brand for Christ. 2 Corinthians 11:24-25