If I regard iniquity in my heart, the Lord will not hear me: Psalm 66:18
The sin that is hidden is not hidden.
The sin that we like, the thing that we ignore,
that sin we cannot get the victory over is exposed and bare before God.
Neither is there any creature that is not manifest in His sight:
but all things are naked and opened unto the eyes of Him with whom we have to do. Hebrews 4:13
Once sin is exposed to us, let us not cherish it.
Sometimes it might be something that is a part of us, that we are so used to, we have given up.
Even if that is the case, let it not be cherished.
God gives us lots of guidelines about how we should serve Him.
Excusing and ignoring our sin is a way of cherishing iniquity.
We can’t see it until the Holy Spirit shows us.
Even then, it can be hard to see or easy to ignore.
Create in me a clean heart, O God; and renew a right spirit within me. Psalm 51:10
God has been cleansing hearts since He created man upon the Earth.
Then will I sprinkle clean water upon you, and ye shall be clean: from all your filthiness,
and from all your idols, will I cleanse you.
A new heart also will I give you, and a new spirit will I put within you:
and I will take away the stony heart out of your flesh, and I will give you an heart of flesh.
And I will put My spirit within you, and cause you to walk in My statutes,
and ye shall keep My judgments, and do them. Ezekiel 36:25-27
Jesus is coming for a spotless bride. (Ephesians 5:27)
We can help by responding to His leading and obey what He asks of us.
These thoughts are just an overview.
Certainly the Holy Spirit will teach each of us what it is He wants us to know.
Be open and listen. Hide nothing as that can hinder His work in us.
Blessed are the pure in heart: for they shall see God. Matthew 5:8