Hebrews 5:12
For certainly enough time has elapsed so that [by now] you ought to be teachers, [but instead] you are in need of having someone teach you again the basic principles of God's message. You have become people who need "milk" and not "solid food." [Note: The fundamental truths of Christianity are here figuratively spoken of as "milk," while the more advanced teaching, such as Christ's priesthood being like Melchizedek's, is called "solid food"].
Hebrews 6:1
So, we should leave the basic principles of Christ's teaching and go on to maturity. [We should] not lay again a foundation of repentance [i.e., turning away] from deeds of death [i.e., acts that lead to spiritual death or that spring from a spiritually dead person], and of faith in God;
Acts 7:38
This is the man who was with our forefathers and with the assembly [of Hebrews] in the wilderness [after] the angel had spoken to him at Mt. Sinai. He [is the one] who received the living messages [from God at Mt. Sinai] and gave them to us.
1 Peter 2:2
[So], like newly born babies, you should desire the genuine, spiritual milk [i.e., God's word. See Heb. 5:12-13], so that by it you may grow toward [final] salvation,
1 Corinthians 3:1-3
And I could not speak to you, brothers, as I would to spiritual people, but [I have to speak to you] as I would to worldly people, for you are immature children in [the fellowship of] Christ.
Hebrews 5:13
For everyone who has to drink "milk" is inexperienced in the teaching about righteousness, for he is [still] a [spiritual] baby.
Colossians 3:16
You should let the message of Christ live in you abundantly [i.e., as individuals and collectively]. Use [much] wisdom in teaching and warning one another with psalms, hymns and spiritual songs, singing with favor [i.e., with thankfulness] in your hearts toward God.
Titus 2:3-4
Older women, likewise, should be reverent in their behavior, not slanderers, not addicted to much wine, teachers of what is good.
1 Peter 4:11
If someone's gift is speaking, he should [be sure to] say only what God wants him to. If a person's gift is serving, he should do so by the strength provided by God [who supplies all such gifts]. This is so that, in using all gifts, God may be honored through Jesus Christ, to whom belongs honor and power forever and ever. May it be so.
Matthew 17:17
Jesus replied [to the crowd], "You perverse generation of faithless people! How long must I be with you [i.e., before you understand]? How long do I have to be patient with you? Bring the sick boy to me."
Mark 9:19
Jesus said to them, "You generation of faithless people How long must I be with you [i.e., before you understand]? How long do I have to be patient with you? Bring the sick boy to me."
1 Corinthians 14:19
However, in the assembly I would rather speak five words with my understanding, so that I can instruct other people also, than to speak ten thousand words in a language [that people do not understand].
Philippians 3:1
Finally, my brothers, rejoice in [your relationship to] the Lord. It does not trouble me to write the same things to you again, because you will be safer if I do. [Note: These "same things" may refer to warnings against false teachers which Paul had either spoken to them or written about previously].
Romans 3:2
Much in every way! First of all, the Jews were entrusted with the messages of God [i.e., their prophets received divine revelations].