'Pure' in the Bible

Since by your obedience to the truth you have purified yourselves for a sincere love of the believers, [see that you] love one another from the heart [always unselfishly seeking the best for one another],

like newborn babies [you should] long for the pure milk of the word, so that by it you may be nurtured and grow in respect to salvation [its ultimate fulfillment],

when they see your modest and respectful behavior [together with your devotion and appreciation—love your husband, encourage him, and enjoy him as a blessing from God].