Adam Clarke on Luke 5:1

The people pressed upon him - There was a glorious prospect of a plentiful harvest, but how few of these blades came to full corn in the ear! To hear with diligence and affection is well; but a preacher of the Gospel may expect that, out of crowds of hearers, only a few, comparatively, will fully receive the truth, and hold out to the end.

To hear the word of God - Του λογον του Θεου, The doctrine of God, or, the heavenly doctrine.

The lake of Gennesaret - Called also the sea of Galilee, Mat 4:18, and Mar 1:16; and the sea of Tiberias, Joh 6:1. It was, according to Josephus, forty furlongs in breadth, and one hundred and forty in length. No synagogue could have contained the multitudes who attended our Lord's ministry; and therefore he was obliged to preach in the open air. But this also some of the most eminent rabbins were in the habit of doing; though among some of their brethren it was not deemed reputable.