Mr. Muller had been back in London scarcely ten days before health again declined, and the conviction took strong hold upon him that he should not spend his little strength in confining study, but at once get about his work; and this conviction was confirmed by the remembrance of the added light which God had given him and the deeper passion he now felt to serve Him more freely and fully. Under the pressure of this persuasion that both his physical and spiritual welfare would be promoted by actual labours for souls, he sought of the Society a prompt appointment to his field of service; and that they might with the more confidence commission him, he asked that some experienced man might be sent out with him as a fellow counsellor and labourer. After waiting in vain for six weeks for an answer to this application, he felt another strong conviction: that _to wait on his fellow men to be sent out to his field and work was unscriptural and therefore wrong._ Barnabas and Saul were called by name and sent forth by the Holy Spirit, before the church at Antioch had taken any action; and he felt himself so called of the Spirit to his work that he was prompted to begin at once, without waiting for human authority,--and why not among the Jews in London? Accustomed to act promptly upon conviction, he undertook to distribute among them tracts bearing his name and address, so that any who wished personal guidance could find him. He sought them at their gathering-places, read the Scriptures at stated times with some fifty Jewish lads, and taught in a Sunday-school. Thus, instead of lying like a vessel in dry-dock for repairs, he was launched into Christian work, though, like other labourers among the despised Jews, he found himself exposed to petty trials and persecutions, called to suffer reproach for the name of Christ. Before the autumn of 1829 had passed, a further misgiving laid hold of him as to whether he could in good conscience remain longer connected in the usual way with this London Society, and on December 12th he concluded to dissolve all such ties except upon certain conditions. To do full justice both to Mr. Muller and the Society, his own words will again be found in the Appendix.* * See Appendix C. Early in the following year it was made clear that he could labour in connection with such a society only as they would consent to his _serving without salary and labouring when and where the Lord might seem to direct._ He so wrote, eliciting a firm but kind response to the effect that they felt it "inexpedient to employ those who were unwilling to submit to their guidance with respect to missionary operations," etc.