Psa 94:18 

When I said, My foot slippeth; thy mercy, O LORD, held me up

Psa 32:1

Blessed is he whose transgression is forgiven, whose sin is covered.

Psa 32:2

Blessed is the man unto whom the LORD imputeth not iniquity, and in whose spirit there is no guile.

Rom 14:14

I know, and am persuaded by the Lord Jesus, that there is nothing unclean of itself: but to him that esteemeth any thing to be unclean, to him it is unclean.

 

Heb 10:38

Now the just shall live by faith: but if any man draw back, my soul shall have no pleasure in him.

 

Eph 2:8

For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:

1John 2:1

My little children, these things write I unto you, that ye sinnot. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous:

Rom 6:20

For when ye were the servants of sin, ye were free from righteousness.

 

1John 1:9

If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

 

Rom 7:20

Now if I do that I would not, it is no more I that do it, but sin that dwelleth in me.

Heb 3:19

So we see that they could not enter in because of unbelief.