Mat 10:32 Whoever therefore shall confess me before men, him will I confess also before my Father which is in heaven.
Mat 10:33 But whoever shall deny me before men, him will I also deny before my Father which is in heaven.

"Confess" is homologeo, which means "to agree with" and "to say the same as another.' Homo equals "same." Logos is "words."

"Before" is emprosthen, which means "in front of."

"Deny" is arneomai, which means "to disown" and "to deny."

The larger context here is speaking Christ's words in public and being persecuted for it. Christ has first assured us that we are valuable to God and that God is keeping track of us. Now Christ is saying that he personally will take sides in this context, for those who agree with him and against those who don't agree with him.

This can refer to the last judgment, but it also refers to the use of Christ's words. Christ is saying that his words will stand the test of time, agreeing with those who agree with him and denying those who deny him. We say what we do only before other men, while Christ gives his testimony in front of the divine power that is throughout the universe.