Jeremiah 17:21

In those days I saw in Judah some who were treading wine presses on the sabbath, and bringing in sacks of grain and loading them on donkeys, as well as wine, grapes, figs and all kinds of loads, and they brought them into Jerusalem on the sabbath day. So I testified against them on the day they sold food.

“Did not your fathers do the same, so our God brought on us and on this city all this calamity? Yet you are adding to His anger on Israel by profaning the sabbath.”

“How blessed is the man who does this, And the son of man who takes hold of it, Who keeps from profaning the sabbath, And keeps his hand from doing any evil.”

“If because of the sabbath, you turn your foot From doing your own desire on My holy day, And call the sabbath a delight, the holy day of Yahweh honorable, And honor it, by not doing your own ways, By not finding your own desire And speaking your own word,

“But it will be, if you listen carefully to Me,” declares Yahweh, “to bring no load in through the gates of this city on the sabbath day, but to keep the sabbath day holy by doing no work on it,

So the Jews were saying to the man who had been healed, “It is the Sabbath, and it is not lawful for you to carry your mat.”