The first companion of St Francis was Brother Bernard of Assisi ...

Then Bernard of Assisi, one of the richest and most learned nobles of the city, began to consider deeply the conduct of St Francis; how utterly he despised the world, how patiently he suffered injuries, and how his faith remained firm, though he had been for two years an object of contempt and rejected by all. He began to think and say within himself, “It is evident that this brother must have received great graces from God”; and so resolved to invite him to sup and to sleep in his house. St Francis having accepted the invitation, Bernard, who was resolved to contemplate the sanctity of his guest, ordered a bed to be prepared for him in his own room, where a lamp burned all night. Now St Francis, in order to conceal his sanctity, so soon as he entered the room, threw himself upon the bed, pretending to fall asleep. Bernard likewise soon after went to bed, and began to snore as if sleeping soundly. On this, St Francis, thinking that Bernard was really fast asleep, got up and began to pray. Raising his hands and eyes to heaven, he exclaimed with great devotion and fervour, “My God! my God!” at the same time weeping bitterly; and thus he remained on his knees all night, repeating with great love and fervour the words, “My God! my God!” and none others. - Life of St. Francis