Since the heart is only known by God, how can we be SURE?

[rgcraig]

In studying the following scriptures on unity and forgiveness, I have a question I'd like to throw out for discussion.

When we come to Christ and put off our old self, we become new and like Him. He has forgiven us and it's written below that we are to forgive others and forget their wrongdoings. I'm with it so far.

Then Ephesians 5:3 starts with BUT and lists several things that should not be among us.

If these things are among us and are a struggle with some, the scriptures say to not be partners with them.

When do we just forgive and forget? Just because someone is looked at as a Christian do we just accept that they are not struggling with any of those things listed and love them as Christ loves them, or not be partners with them?

Since their heart is only known by God, how can we be SURE?

Ephesians 4
Unity in the Body of Christ
2 Be completely humble and gentle; be patient, bearing with one another in love. 3Make every effort to keep the unity of the Spirit through the bond of peace. 4There is one body and one Spirit—just as you were called to one hope when you were called—

22 You were taught, with regard to your former way of life, to put off your old self, which is being corrupted by its deceitful desires; 23to be made new in the attitude of your minds; 24and to put on the new self, created to be like God in true righteousness and holiness.

29 Do not let any unwholesome talk come out of your mouths, but only what is helpful for building others up according to their needs, that it may benefit those who listen. 30 And do not grieve the Holy Spirit of God, with whom you were sealed for the day of redemption. 31 Get rid of all bitterness, rage and anger, brawling and slander, along with every form of malice. 32 Be kind and compassionate to one another, forgiving each other, just as in Christ God forgave you.

Ephesians 5
1 Be imitators of God, therefore, as dearly loved children 2and live a life of love, just as Christ loved us and gave himself up for us as a fragrant offering and sacrifice to God.

3 But among you there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed, because these are improper for God's holy people. 4 Nor should there be obscenity, foolish talk or coarse joking, which are out of place, but rather thanksgiving. 5 For of this you can be sure: No immoral, impure or greedy person—such a man is an idolater—has any inheritance in the kingdom of Christ and of God.[a] 6 Let no one deceive you with empty words, for because of such things God's wrath comes on those who are disobedient. 7 Therefore do not be partners with them.

15 Be very careful, then, how you live—not as unwise but as wise, 16making the most of every opportunity, because the days are evil. 17Therefore do not be foolish, but understand what the Lord's will is. 21Submit to one another out of reverence for Christ.