Eat Sog - Pt. 2

Again, this is from Evangelism and the Sovereignty of God by J.I. Packer.

...the Christian must never for one moment imagine himself to be indispensable to God, or allow himself to behave as if he were. The God who sent him, and is pleased to work with him, can do without him. He must be ready to sped and be spent in the tasks that God sets him; but he must never suppose that the loss to the Church would be irreparable if God should lay him aside and use someone else. Hue must not at any point say to himself, 'God's cause would collapse without me and the work I am doing' - for there is never any reason to think this is so. It is never true that God would be at a loss without you and me. Those who have begun to understand the sovereignty of God see all this, and so they seek to efface themselves in all their work for God. They thus bear a practical witness to their belief that God is great, and reigns, by trying to make themselves small, and to act in a way which is itself an acknowledgement that the fruitfulness of their Christian service depends wholly on God, and not upon themselves.

J.I. Packer, Evangelism & the Sovereignty of God (Downers Grove: InterVarsity Press, 1961).