Gladness at Peter's Liberation.
And as Peter knocked at the door of the gate, a girl named Rhoda came to answer. When she recognized Peter's voice, because of her gladness she did not open the gate, but ran in and announced that Peter stood before the gate.--Acts 12:13, 14, NKJV
TO PETER, IN PRISON AND CONDEMNED TO DEATH, God's angel appeared;...past the armed guards, the massive doors and great iron gateway with their bolts and bars, the angel led God's servant forth in safety.--Education, 255.
The apostle made his way at once to the house where his brethren were assembled and where they were at that moment engaged in earnest prayer for him. "As Peter knocked at the door of the gate, a damsel came to hearken, named Rhoda. And when she knew Peter's voice, she opened not the gate for gladness, but ran in, and told how Peter stood before the gate. And they said unto her, Thou art mad. But she constantly affirmed that it was even so. Then said they, It is his angel.
"But Peter continued knocking: and when they opened the door, and saw him, they were astonished. But he, beckoning unto them with the hand to hold their peace, declared unto them how the Lord had brought him out of the prison." And Peter "departed, and went into another place." Joy and praise filled the hearts of the believers, because God had heard and answered their prayers and had delivered Peter from the hands of Herod.--The Acts of the Apostles, 148.
And when Peter had come to himself, he said,
"Now I know for certain that the Lord has sent His angel,
and has delivered me from the hand of Herod
and from all the expectation of the Jewish people."
--Acts 12:11, NKJV