1921 Advice on Prayer for Preachers

What do you think? Is this advice still needed? “Prayer makes a heart preacher instead of a head preacher. Prayer puts the sermon in the preacher's heart; better still, prayer puts the preacher's heart in the sermon. The preachers who are mightiest in their closets with God are the mightiest in their pulpits with men. Prayer is the first thing, second thing, third thing, necessary for the ministry.” — Jan. 22, 1921, Pentecostal Evangel