Ibrani 5:13

5:13 For everyone who lives on milk is inexperienced in the message of righteousness, because he is an infant.

Ibrani 12:6

12:6 “For the Lord disciplines the one he loves and chastises every son he accepts.” ¹ 

Ibrani 13:10

13:10 We have an altar that those who serve in the tabernacle have no right to eat from.

[12:6]  ¹ sn A quotation from Prov 3:11-12.