speratus offers more foolishness: Repentant Christians honor even foolish commitments. If a commitment of marriage was made during the course of this adulterous relationship, it is binding on the Christian (1 Cor. 7:13,14).
Christians should repent of foolish commitments including offering to marry an unbeliever. No believer is bound to follow through with a sinful desire or intent to sin. Resistance to sin is a virtue as far as I know. But 1 Cor. 7:13, 14 is dealing with those WHO ARE ALREADY MARRIED which is not applicable to the situation described in this matter.
Do you think Paul considered the betrothal contract to be any less binding upon a couple (husband and wife) than the actual marriage ceremony (Deut. 22:23-29; Matt. 1:19)?
Until recently, evangelical churches identified breach of promise as a sin and the civil authorities marked it as offense against the civil code. But, in today's antinomial world, it's ok to bear false witness and defraud a person to whom a pledge has been made simply because "he/she is not a Christian".
