“Also I say unto you, Whosoever shall confess me before men, him shall the Son of man also confess before the angels of God:”
Luke 12:8 — Greek Interlinear
Church Fathers on Luke 12:8
It was said above, that every hidden work and word is to be revealed, but He now declares that this revelation is to take place in the presence of the heavenly city and the eternal Judge and King; saying, But I say to you, Whosoever shall confess me, &c.
He has also well introduced faith, stimulating us to its confession, and to faith itself He has placed virtue as a foundation. For as faith is the incentive to fortitude, so is fortitude the strong support of faith.
The Lord is not then content with an inward faith, but requires an outward confession, urging us to confidence and greater love. And since this is useful for all, He speaks generally, saying, Whosoever shall confess me, &c.