the paps of thy youth] The meaning is, the Egyptians took occasion to perswade thee to idolatrie, when thou wast in thy spirituall childhood, by reason thou hadst but small knowledge and experience of my pure worship; which thou canst not now pretend, being fully instructed in it: as a young maide, if she were seduced, might partly be excused for her simplicity, which a married woman that is of full age cannot plead.