Those 'on the rock' are people who on hearing the word welcome it with enthusiasm, but they have no root; they believe for a while and fall away in the hour of trial.
They withdrew from us, but they did not belong to us; had they belonged to us, they would have remained with us, but they withdrew to make it plain that they are none of us.
At that moment the cock crowed for the second time. Then Peter remembered how Jesus had told him, "Before the cock crows twice you will disown me thrice;" and he burst into tears.
Paul a servant of God and an apostle of Jesus Christ for the faith of God's elect and for their knowledge of the Truth that goes with a religious life,