Related Clues:

• "Amen!"
• Swearing-in vow
• Words spoken to a preacher, perhaps
• "You can say that again!"
• Groom's answer
• 'Sure, why not?!'
• 'Why don't we!'
• Court calls
• "Sure!"
• Bride's vow
• Emphatic response
• "... and nothing but the truth?" response
• Slangy agreement
• Knot-tying promise
• Double positive?