'Loading' in the Bible

So David got up early in the morning and entrusted the flock to someone else who would watch over it. After loading up, he went just as Jesse had instructed him. He arrived at the camp as the army was going out to the battle lines shouting its battle cry.

In those days I saw people in Judah treading winepresses on the Sabbath, bringing in heaps of grain and loading them onto donkeys, along with wine, grapes, figs, and all kinds of loads, and bringing them to Jerusalem on the Sabbath day. So I warned them on the day that they sold these provisions.