A "lordship relationship" requires the "doing of God's will". We need to know God's will before we can do it and we need to do God's will before we can become it. "My food," said Jesus, "is to do the will of him who sent me and to finish his work. (John 4:34) Anyone who lives on milk, being still an infant, is not acquainted with the teaching about righteousness. But solid food is for the mature, who by constant use have trained themselves to distinguish good from evil. (Heb 5:13-14)
1. Who is the author of the non-biblical portion of the quote: We need to know God's will before we can do it and we need to do God's will before we can become it.
2. Would you happen to know what this part means? we need to do God's will before we can become it
3. What translation is the Hebrews 5:13,14 portion taken from? It is decidedly different from most Formal Equivalent translations, e.g.:
Hebrews 5:11-14 (ASV) "Of whom we have many things to say, and hard of interpretation, seeing ye are become dull of hearing. 12 For when by reason of the time ye ought to be teachers, ye have need again that some one teach you the rudiments of the first principles of the oracles of God; and are become such as have need of milk, and not of solid food. 13 For every one that partaketh of milk is without experience of the word of righteousness; for he is a babe. 14 But solid food is for fullgrown men, [even] those who by reason of use have their senses exercised to discern good and evil."
The text isn't disparaging babes in Christ who are needful of the milk of the Word, i.e., the "basic" doctrines of the faith. It is Paul's reprimand to those who have set themselves up as teachers but ignorant of those basic doctrines (false teachers). Thus they need to be instructed in the first principles of God's Word and are therefore not qualified to be teachers.