For everyone who partakes only of milk is not accustomed to the word of righteousness, for he is an infant. But solid food is for the mature, who because of practice have their senses trained to discern good and evil. Hebrews 5:12-14, Hebrews 6:1-2
““And they shall not teach everyone his fellow citizen,
And everyone his brother, saying, ‘Know the Lord,’
For all will know Me,
From the least to the greatest of them.
“For I will be merciful to their iniquities,
And I will remember their sins no more.”
When He said, “A new covenant,” He has made the first obsolete. But whatever is becoming obsolete and growing old is ready to disappear.”