Weakness
I have a friend who sends me a quote every day from Spurgeon’s Morning and Evening. This one was particularly challenging:
“Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ.” (Ephesians 3:8)
…The fuller a vessel becomes, the deeper it sinks in the water. Idlers may indulge a fond conceit of their abilities, because they are untried; but the earnest worker soon learns his own weakness. If you seek humility, try hard work; if you would know your nothingness, attempt some great thing for Jesus. If you would feel how utterly powerless you are apart from the living God, attempt especially the great work of proclaiming the unsearchable riches of Christ, and you will know, as you never knew before, what a weak unworthy thing you are.