'Know' in the Bible

But we know that the Law is good, if one uses it lawfully,

(but if a man does not know how to manage his own household, how will he take care of the church of God?),

but in case I am delayed, I write so that you will know how one ought to conduct himself in the household of God, which is the church of the living God, the pillar and support of the truth.

men who forbid marriage and advocate abstaining from foods which God has created to be gratefully shared in by those who believe and know the truth.