Just look in the Holy Scriptures at the definition of sin!
1. “A high look and the plowing of the wicked is sin.” (Prov. 21:4)
2.”The thought of foolishment is sin...” (Prov.24:9)
3.” .....for whatsoever is not of faith is sin.” (Rom.14:23)
4.”Therefore to him that knoweth to do good and doeth it not, to him it is sin.” (James 4:17)
5.”Whosoever committeth sin trangresseth also the law, for sin is the trangression of the law.” (1 John 3:4)
6.”All unrighteousness is sin....” (1 John 5:17)
The Apostle Paul gave us a very instructions and warnings, in 1 Corinthians 11:17-34 as to how we take part in “The Lord’s Supper.” He said; “As oft as take the cup, and eat this bread, ye do shew forth the Lord’s death till He come.”
We are warned: “If we eat this bread and drink this cup unworthly, ye shall be guilty of the body and blood of Christ.”
“For this cause amny are weak and sickly among you, and many sleep.”
Hebrews tells us; “If we are His children, He chastens us, that we might be partakers of His Holiness. And without holiness, no man shall see the Lord.” (Hebrews 12:3-15)
Yes, I understand the Bible describes many sins. Not all believe the Bible is the actual word of God.