1 Timothy 3:2

3:2 The overseer then must be above reproach, the husband of one wife, temperate, self-controlled, respectable, hospitable, an able teacher,

1 Timothy 4:3

4:3 They will prohibit marriage and require abstinence from foods that God created to be received with thanksgiving by those who believe and know the truth.

Titus 1:6

1:6 An elder must be blameless, the husband of one wife, with faithful children who cannot be charged with dissipation or rebellion.

Hebrews 13:4

13:4 Marriage must be honored among all and the marriage bed kept undefiled, for God will judge sexually immoral people and adulterers.