Believers are a new thing: babes no less.
As newborn babes, desire the sincere milk of the word, that ye may grow thereby: 1 Peter 2:2
1 Peter 2:9ff expands this new infancy of ours from nursing infants to mature servants serving others.
I guess we do not want to be babes for too long: babes are totally and rightly self-centered.
- chosen generation
- royal priesthood
- holy nation
- peculiar people
As to the purpose of this Peter is graphically honest. We ought to have a message to others.
- that ye should shew forth the praises ( aretas αρετάς from arete αρετή ) of him who hath called you out of darkness into his marvellous light:
We message Christ’s excellent things because we have tasted, we have migrated from darkness to light.
Straight-up, no guessing translation
If (SINCE) so be ye have tasted that the Lord is gracious. 1 Peter 2:3
Since you tasted (did taste) ⸀εἰ ἐγεύσασθε ὅτι χρηστὸς ὁ κύριος.
Move on from baby things soon!