1 Corinthians 7:18

"Only as God hath distributed to each man, as the Lord hath called each, so let him walk. Was any one called being circumcised? let him not become uncircumcised. Was any called in uncircumcision? let him not be circumcised. Circumcision is nothing, and uncircumcision is nothing; but the keeping of the commandments of God. Let each man abide in that calling wherein he was called. Wast thou called, being a slave? Care not for it." These things contribute nothing unto faith, saith he. Be not then contentious neither be troubled; for the faith hath cast out all these things. "Let each man abide in that calling wherein he was called. Hast thou been called, having an unbelieving wife? Continue to have her. Cast not out thy wife for the faith's sake. Hast thou been called, being a slave? Care not for it. Continue to be a slave. Hast thou been called, being in uncircumcision? Remain uncircumcised. Being circumcised, didst thou become a believer? Continue circumcised. For this is the meaning of, "As God hath distributed unto each man." For these are no hindrances to piety. Thou art called, being a slave; another, with an unbelieving wife; another, being circumcised.