Study universal holiness of life. Your whole usefulness depends on this, for your sermons last but an hour or two; your life preaches all the week. If Satan can only make a covetous minister a lover of praise, of pleasure, of good eating, he has ruined your ministry. Give yourself to prayer, and get your texts, your thoughts, your words from God. Luther spent his best three hours in prayer.-

Robert Murray MCcheyne

You know the value of prayer: it is precious beyond all price. Never, never neglect it-Sir Thomas Buxton
Prayer is the first thing, the second thing, the third thing necessary to a minister. Pray, then, my dear brother: pray, pray, pray-Edward Payson

The principal cause of my leanness and unfruitfulness is owing to an unaccountable backwardness to pray. I can write or read or converse or hear with a ready heart; but prayer is more spiritual and inward than any of these, and the more spiritual any duty is the more my carnal heart is apt to start from it. Prayer and patience and faith are never disappointed. I have long since learned that if ever I was to be a minister faith and prayer must make me one. When I can find my heart in frame and liberty for prayer, everything else is comparatively easy.-Richard Newton

IT may be put down as a spiritual axiom that in every truly successful ministry prayer is an evident and controlling force-evident and controlling in the life of the preacher, evident and controlling in the deep spirituality of his work. A ministry may be a very thoughtful ministry without prayer; the preacher may secure fame and popularity without prayer; the whole machinery of the preacher’s life and work may be run without the oil of prayer or with scarcely enough to grease one cog; but no ministry can be a spiritual one, securing holiness in the preacher and in his people, without prayer being made an evident and controlling force. E.M. Bounds