Luke
Luke 5:17BSB·traditional attribution

One day Jesus was teaching, and the Pharisees and teachers of the law were sitting there. People had come from Jerusalem and from every village of Galilee and Judea, and the power of the Lord was present for Him to heal the sick.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A general account of Christ's preaching and miracles, Luk 5:17. 1. He was teaching on a certain day, not on the sabbath day, then he would have said so, but on a week-day; six days shalt thou labour, not only for the world, but for the soul, and the welfare of that.

Commenting on Luke 5:17-26

John Gill Reformed Baptist @doctorgill

And it came to pass on a certain day,.... When he was at Capernaum, as appears from Mar 2:1 As he was teaching: in the house where such numbers were gathered together, to hear the word of God preached by him, that there was not room for them, neither within the house, nor about the door, Mar 2:2 That there were Pharisees and doctors of...

Albert Barnes Presbyterian @notesbybarnes

Verse 17. See this passage explained in Barnes "Mt 9:1" through Mt 9:7. On a certain day. The time and place are not particularly mentioned here, but from it seems it was at Capernaum.