With their doctrine they build, and with their lives they destroy.
Augustine of Hippo
It is no use walking anywhere to preach unless we preach as we walk.
Francis of Assisi
We must study hard how to live well as how to preach well.
Richard Baxter
He preaches well that lives well.
Phillips Brooks’ definition of great preaching
Every preacher should sound out more by his deeds than by his words. He should, by his good life, make footprints for men to follow rather than, by speaking, merely show them the way to walk in.
Gregory the Great
No man preaches his own sermon well to others if he doth not first preach it to his own heart.
John Owen
Practice yourself what you preach.
Plautus