When you take this oath at 3rd level, you gain the following two Channel Divinity options.
Abjure Enemy. As an action, you present your holy symbol and speak a prayer of denunciation, using your Channel Divinity. Choose one creature within 60 feet of you that you can see. That creature must make a Wisdom saving throw, unless it is immune to being frightened. Fiends and undead have disadvantage on this saving throw.
On a failed save, the creature is frightened for 1 minute or until it takes any damage. While frightened, the creature’s speed is 0, and it can’t benefit from any bonus to its speed.
On a successful save, the creature’s speed is halved for 1 minute or until the creature takes any damage.
Vow of Enmity. As a bonus action, you can utter a vow of enmity against a creature you can see within 10 feet of you, using your Channel Divinity. You gain advantage on attack rolls against the creature for 1 minute or until it drops to 0 hit points or falls unconscious.
Channel Divinity: Abjure Enemy: 1 Action
Channel Divinity: Vow of Enmity: 1 Bonus Action