Charles Spurgeon Commentary Luke 4:20-21

"And he closed the book, and gave it back to the attendant, and sat down: and the eyes of all in the synagogue were fastened on him. And he began to say unto them, To-day hath this scripture been fulfilled in your ears." — Luke 4:20-21 (ASV)

And the eyes of all them that were in the synagogue were fastened on him. And he began to say unto them, This day is this scripture fulfilled in your ears.

That is the way to preach: bring home the Scripture to the present time, show its application to everyday life, especially point out its connection with Christ, and prove how it is fulfilled and verified in His sacred person. Doubtless, Jesus said a great deal more than what is recorded here, but there were no shorthand writers there to take down every word He uttered.