To Discern Good And Evil

Hebrews 5:11-14 (NASB Strong’s (Lockman))

11 Concerning him we have much to say, and it is hard to explain, since you have become dull of hearing. 12 For though by this time you ought to be teachers, you have need again for someone to teach you the elementary principles of the oracles of God, and you have come to need milk and not solid food. 13 For everyone who partakes only of milk is not accustomed to the word of righteousness, for he is an infant. 14 But solid food is for the mature, who because of practice have their senses trained to discern good and evil.

Though we hear the word of salvation, it does not preclude us from becoming hard of hearing the word that leads to maturity in Christ. Practicing the word in our lives means staying in the word and walking our revelation in obedience to Him. 

The knowledge of good and evil is perfected in the word. It is then we are able fully come to our senses and enjoy the kingdom of heaven; to be like God in knowing good and evil, yet choosing the good.