Romans 8:5-8 5 Those who live according to the sinful nature have their minds set on what that nature desires; but those who live in accordance with the Spirit have their minds set on what the Spirit desires. 6 The mind of sinful man is death, but the mind controlled by the Spirit is life and peace; 7 the sinful mind is hostile to God. It does not submit to God’s law, nor can it do so. 8 Those controlled by the sinful nature cannot please God.
Galatians 5:19-21 19 The acts of the sinful nature are obvious: sexual immorality, impurity and debauchery; 20 idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions 21 and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God.
So we are to avoid the lust of the flesh, especially sexual temptation which is all around us nowdays.
Application? We need spiritual partners.