A man who hasn’t showered for weeks, washes his face, shaves, combs his hair, puts on a new suit, and looks brand new. But with a closer inspection by one’s nose, it is obvious that something is seriously wrong with that picture [the man].
That is a spiritual picture of a religious person who looks righteous on the outside but is still being driven by his sinful pleasures.
“Woe to you, scribes and Pharisees, hypocrites! You are like whitewashed tombs, which appear beautiful on the outside, but inside are full of the bones of the dead and every kind of impurity.”
The flesh brings death but the Spirit of God brings life. Walk in the Spirit to extinguish the desires of the flesh.