St. Bonaventure says that this was the ground of his doubt, and he gives two reasons why God permitted that the Saint should not have been able to solve the difficulty, the solution of which appeared so easy. The first is, in order that the heavenly oracles which had announced that Francis was destined to preach the Gospel, should give a more exalted idea of the merits of that ministry; to this may be added, that it was of consequence that it should be known with certainty that the holy Founder and his disciples were destined by Heaven to labor for the salvation of souls, since in after times it has been found that some of their adversaries have contested it. Secondly, the doubt of the servant of God was useful in preserving his humility and rendering it still greater. In the capacity of a Friar Minor, he was not ashamed of seeking the advice of the least of his brethren, he who had been taught such elevated things from the Sovereign Master. It was likewise one of his maxims throughout his whole life, and of the principles of the sacred philosophy, of which he made profession, to address himself to the simple as well as to the learned, to the imperfect as well as to the perfect, to the young as to the old, with the ardent desire to find from intercourse with them in what way and by what means he could best serve God according to His good pleasure, and raise himself to the greatest perfection. Finally, we must not be surprised that he entreated God to grant him additional proofs of his vocation, after having received such convincing ones by revelations, by miracles, and from the mouth of the Vicar of Jesus Christ; when we see in the Sacred Scriptures, that Gideon, having been chosen by God to fight the enemies of His people, and this choice having been manifested by the apparition of an angel, by a miracle and by a revelation, he nevertheless begged the Lord to give other miraculous signs, in order to be still further assured of it, and his prayer was granted. Would to God, that, without asking for miracles and without expecting them, all vocations, particularly those for the holy ministries, and other affairs of conscience, were examined on such sound principles, and weighed by means as likely to deserve the light of Heaven. In order to know how finally to decide, Francis sent two of his religious, Philip and Masse, to Brother Sylvester the priest, who was then on the mountain near Assisi, continually intent on prayer, begging him to consult the Lord on the subject of his doubt, and to let him know the result. He made a similar application to Clare, recommending her to put the same question to her sisters, and particularly to the one who should appear to her to be the most pure and most single-minded. The venerable priest and the consecrated virgin gave similar answers, and pronounced that it was the will of God that Francis should go forth to preach.