My mother had a very good understanding of English Grammar.

Once she told me, "Son, go take out the trash."

I was studying, and thought it would be ok later.
So, I said, "I shall, Mom ... in a little while."

She came to the table and said, "No, Son.
You SHALL do it NOW and every night after supper!"

Luke 12:8-9
8 Also I say unto you, Whosoever shall confess me before men,
him shall the Son of man also confess before the angels of God:
9 But he that denieth me before men shall be denied before the
angels of God.

"Confess"/"Denieth." Two opposites.
One thing I believe is important here is the tense of the verbs.

"Shall confess" is in the simple future tense (English).
That means CONSTANTLY!
He who confesses Christ is owned by Christ.
He who is owned by Christ is constantly confessing Christ!

"Denieth" is also in the simple future tense (English).
He who lives a life denying Christ as Lord of his life, is NOT owned by Christ!
And it does not matter if that person has once made a public confession
of faith, been dunked and put on a church roll!

You see, it is impossible to genuinely surrender to Christ as Lord without
constantly confessing the same!

It is not just a one-time act, it is a continued work.

The REASON it is a continued work, is because at the point of genuine contract,
Christ SEALS the believer in faith by His Holy Spirit (see Ephesians 1:13).
At that point, the Holy Spirit begins a work of constant profession of Christ in the
believer's life!

Jesus puts the two (confession and profession) together as one continual act.
Later, Paul reiterates the same thought (See Romans 10:9-10).

“Shall confess....”
Is that YOU?

Love ya!
Bro. Bruce