PURE –(gk.) clean, clear; to prune so as to bear fruit; purified by fire: free from corrupt desire, sincere, genuine, free from every admixture of what is false, free from guilt
4Neither give heed to fables and endless genealogies, which minister questions, rather than godly edifying which is in faith: so do.
5Now the end of the commandment is charity out of a pure heart, and of a good conscience, and of faith unfeigned:
Romans 13: 14 (AMP)
But clothe yourself with the Lord Jesus Christ (the Messiah), and make no provision for [indulging] the flesh [put a stop to thinking about the evil cravings of your physical nature] to [gratify its] desires (lusts).