Around the city of Damascus was a high wall, and no one could go in or out except through the gates. Therefore, when the Jews decided to kill Saul, the first thing they did was to make sure he could not escape. So they placed guards at every gate, and "watched day and night to kill him."
Friends.
But Saul had his friends as well as enemies, and he had one Friend who had chosen him for a great and useful mission, and as long as Saul was faithful, his life would be spared until this special work was done. Through inspiration or otherwise, Saul knew that his enemies were lying in wait for him, so he kept out of their way.
Over the Wall.
Fortunately, one of his friends lived in a house built right near the wall of the city; and from here, some of the disciples assisted Saul to escape. They put him in a basket, and then watching carefully to see that no enemies were in sight, they carried Saul to the top of the wall, and let him down on the other side. Thus it happened that while the wicked guards were watching day and night to entrap Saul, that disciple of the Master was making his journey back to Jerusalem.
WITH THE DISCIPLES IN JERUSALEM
Returns to Jerusalem.
Three years before, he left Jerusalem as an officer of the Sanhedrin, bearing a special commission, and accompanied by attendants and officers. He left with enmity in his heart for every person who professed to believe in Jesus Christ. Now he journeys back alone, rejected by those whom he had served, a fugitive from the Jews who, a few years before, awaited to welcome him as a hero! But Saul is happier now alone as he is than when he went in pomp to arrest God's servants. And yet he can look forward to no welcome in Jerusalem! His old friends and teachers think he has turned traitor to their cause, and the Apostles of Jesus doubt his conversion. "They were all afraid of him, and believed not that he was a disciple."
Barnabas.
But there was one, an old friend and true, a classmate, and fellow townsman who extended to Saul the glad hand of fellowship. That was Barnabas, who "took him, and brought him to the apostles," declaring how Saul had been converted by a light, and the voice of the Lord, and how he had preached in Damascus in the name of Jesus.