Muller’s work with orphans is perhaps the reason he is best known. Christians take great hope from the story, because it demonstrates how powerfully God can and does work through a faithful servant of Christ. Thus, it is interesting to note why Muller set upon the work. One would think that the plight of homeless children would have stirred him — and, indeed it did. But, the good to the children was not the primary goal. Muller gave three reasons:
1. That God may be glorified in so furnishing the means as to show that it is not a vain thing to trust in Him;
2. That the spiritual welfare of fatherless and motherless children may be promoted;
3. That their temporal good may be secured.
He had frequent reminders in his pastoral labours that the faith of God’s children greatly needed strengthening; and he longed to have some visible proof to point to, that the heavenly Father is the same faithful Promiser and Provider as ever, and as willing to Prove Himself the Living God to all who put their trust in Him, and that even in their old age He does not forsake those who rely only upon Him. Remembering the great blessing that had come to himself through the work of faith of Francke, he judged that he was bound to serve the Church of Christ in being able to take God at His word and rely upon it.
Arthur Tappan Pierson. “George Müller of Bristol.” James Nisbet. iBooks. Muller’s rationale was explained by Lewis (who was not referencing Muller directly, but rather referencing the same principle: Aim at heaven, and you’ll get earth thrown in. Aim at earth and you will get neither.”