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

2 Corinthians 11:2
For I am jealous over you with godly jealousy: for I have espoused you to one husband, that I may present you as a chaste virgin to Christ.

Titus 2:5
To be discreet, chaste, keepers at home, good, obedient to their own husbands, that the word of God be not blasphemed.

1 Peter 3:2
While they behold your chaste conversation coupled with fear.