Tim Challies has a great post from one of George Whitefield’s sermons (text was Luke 8:18) where he provides some cautions and directions on hearing, profiting, and taking advantage of a sermon delivered. Here are the main summary points:
1. Come to hear them, not out of curiosity, but from a sincere desire to know and do your duty.
2. Give diligent heed to the things that are spoken from the Word of God.
3. Do not entertain even the least prejudice against the minister.
4. Be careful not to depend too much on a preacher, or think more highly of him than you ought to think.
5. Make particular application to your own hearts of everything that is delivered.
6. Pray to the Lord, before, during, and after every sermon, to endue the minister with power to speak, and to grant you a will and ability to put into practice what he shall show from the Book of God to be your duty.