Verses with the word admonition in the New Testament (3 verses):

1 Corinthians 10:11
Now all these things happened unto them for ensamples: and they are written for our admonition, upon whom the ends of the world are come.

Ephesians 6:4
And, ye fathers, provoke not your children to wrath: but bring them up in the nurture and admonition of the Lord.

Titus 3:10
A man that is an heretick after the first and second admonition reject;