I agree somewhat with your statement regarding holiness.
One of the many examples of holiness is provided us in Scripture as the Arc of the Covenant where two angels face one another, one representing His Perfect Righteousness and the other His Perfect Justice. Both are on the Mercy Seat, where the blood of the sacrifice of an unblemished lamb is presented by the High Priest as an atonement sacrifice. Within the Arc were the tablets of the ten commandments (the law broken), Aaron's rod that budded, and manna.
Holy doesn't so much mean 'like God', but is even better revealed to us in the Tabernacle and the Mercy Seat.
If one doesn't understand holiness, one of the first opportunities available for the most trustworthy truth is to simply study the Arc of the Covenant in Scripture through faith in Christ and allow the Holy Spirit to guide the believer's study.
God Bless.