if you are instructors of the ignorant, and teachers of babies [i.e., immature people] and possess in the law of Moses the [correct] form of knowledge and truth ---
You should hold on firmly to the pattern of sound teaching that you have heard from me, while [maintaining your] faith and love in [harmony with] Christ Jesus.
[These people] maintain an appearance of being godly, but they have denied its power; [you should] turn away from such people.
Thank God that you people, who were once slaves to [the practice of] sin, became obedient from [your] heart to the pattern of teaching [i.e., the Gospel message] you committed yourself to.
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.
These people claim to know God [as Savior], but they deny Him by their actions, so they are detestable and disobedient and unfit for doing anything good.
About that time Jesus said [in prayer], "I thank you, O Father, Lord of heaven and earth, that you have hidden these things [i.e., the significance of Jesus' words and works] from those who [thought they] were wise and intelligent and have [instead] revealed them to people who are child-like.
For everyone who has to drink "milk" is inexperienced in the teaching about righteousness, for he is [still] a [spiritual] baby.