I was reading the Channel Divinity abilities of the Oath of Vengeance paladin on my character sheet on D&D Beyond. Under Vow of Enmity, it says:
As a bonus action, you can use your Channel Divinity to choose a creature within 10 ft. and gain advantage on attack rolls against it for 1 minute or until it drops to 0 HP or falls unconscious.
Here is where I'm seeing this text in D&D Beyond, on my character sheet:
Can Vow of Enmity be used on an invisible creature, since it is not written that I need to see it?
For contrast, Channel Divinity: Abjure Enemy says the following:
As an action, you can choose one creature within 60 ft. of you that you can see to make a WIS saving throw (14). Fiends and undead have disadvantage on this saving throw. On failure, the creature is frightened and its speed is reduced to 0 (and it can't benefit from bonuses to speed) for 1 minute or until it takes any damage. On success, the creature’s speed is halved for 1 minute or until the creature takes any damage.
However, it doesn't look like Vow of Enmity specifies this.