Matthew 5:8, “Blessed are the pure in heart for they shall see God!” How can they be pure in heart unless they are saved?
The world is far from being pure in heart but revels in uncleanness and wickedness.
It is God’s will that we be pure. I Thessalonians 4:7, “For God hath not called us unto uncleanness, but unto holiness.”
The immoral will be judged by God. I Thessalonians 4:6, “That no man go beyond and defraud his brother in any matter: because that the Lord is the avenger of all such, as we also have forewarned you and testified.”
Hebrews 13:4, “Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge.”
Lustful thoughts are sinful. Matthew 15:19-20, “For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies: These are the things which defile a man: but to eat with unwashen hands defileth not a man.”
We are to run from immorality, I Corinthians 6:18, “Flee fornication. Every sin that a man doeth is without the body; but he that committeth fornication sinneth against his own body.”
A pure heart is attained only through the blood of Christ. I John 1:7, “But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.”