Ok next you quoted a tiny piece of what Paul says in Ephesians 4 but let’s examine the statement in its full context.
“Therefore, laying aside falsehood, SPEAK TRUTH EACH ONE of you WITH HIS NEIGHBOR, for we are members of one another. BE ANGRY, AND yet DO NOT SIN; do not let the sun go down on your anger, and do not give the devil an opportunity. He who steals must steal no longer; but rather he must labor, performing with his own hands what is good, so that he will have something to share with one who has need. Let no unwholesome word proceed from your mouth, but only such a word as is good for edification according to the need of the moment, so that it will give grace to those who hear. Do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption. Let all bitterness and wrath and anger and clamor and slander be put away from you, along with all malice. Be kind to one another, tender-hearted, forgiving each other, just as God in Christ also has forgiven you.”
Ephesians 4:25-32 NASB
But wait he’s not finished yet because his very next word is “Therefore”.
“Therefore be imitators of God, as beloved children; and walk in love, just as Christ also loved you and gave Himself up for us, an offering and a sacrifice to God as a fragrant aroma. But immorality or any impurity or greed must not even be named among you, as is proper among saints; and there must be no filthiness and silly talk, or coarse jesting, which are not fitting, but rather giving of thanks. For this you know with certainty, that no immoral or impure person or covetous man, who is an idolater, has an inheritance in the kingdom of Christ and God. Let no one deceive you with empty words, for because of these things the wrath of God comes upon the sons of disobedience.”
Ephesians 5:1-6 NASB
Now Paul is telling these saints in Ephesus who are faithful to
Christ and sealed with the Holy Spirit unto the day of redemption not to grieve the Holy Spirit and that they MUST NOT turn back to a sinful way of life which will result in them losing their inheritance in the kingdom of heaven and receiving God’s wrath on the sons of disobedience.