'Know the Lord' in the Bible

Now Samuel did not yet know the LORD, neither was the word of the LORD yet revealed to him.

And the LORD shall be known to Egypt, and the Egyptians shall know the LORD in that day, and shall do sacrifice and oblation; yes, they shall vow a vow to the LORD, and perform it.

And they shall teach no more every man his neighbor, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them to the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more.

I will even betroth thee to me in faithfulness: and thou shalt know the LORD.

Then shall we know, if we follow on to know the LORD: his going forth is prepared as the morning; and he will come to us as the rain, as the latter and former rain to the earth.

And they shall not teach every man his neighbor, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest.