find out what is in the heart, because no man on earth can find out what is in the heart.
The man who starts out to do that is going to be terribly deceived; for "the heart is deceitful above all things," (Jer.17:9) and it will deceive him every time.
But the Lord says, "I the Lord search the heart." (Jer.17:10). He makes known to every man the fruit of his ways, and we want to have confidence enough in him to let him do the searching of the heart.
--When we find out that we are in the faith, we shall not be afraid to truth the Lord to search the heart and make known the sin.
--If we be in the faith, we know that Christ died for sinners, in order that they might be separated from sin.
Therefore He is more interested in having us know the sins,
so as to give them up to Him, than we are to know them.
It is not an unheard of thing, by any means, to find professed Christians who do not know that the Lord loves them when in sin,and so they are always afraid of the Lord, from a sense of their sinfulness.
Q: Are you in the faith?
A: If so, you will accept the knowledge of sin as the result of the revelation of the righteousness which will take away that sin, and rejoice in the Lord." E.J. Waggoner