TakeTheOath is a meme or hashtag that went viral among supporters of Q on June 24, 2020.

On the afternoon of June 24, 2020, Q posted (drop 4510):

Take the oath.
Mission forward.

This was in reply to an anon who had posted this oath of office, adding WWG1WGA:

I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter: So help me God. WWG1WGA

That evening, Q highlighted three tweets in which anons took the oath: