some part: Though the words "some part" are not expressed, yet it is generally allowed that they should be supplied here; as it was not lawful for a man to alienate in this manner his whole patrimony. He might express his good will for the house of God but he must not impoverish his own family.
of a field: Acts 4:34-37, Acts 5:4
an homer: or, the land of an homer, etc. i.e. as much land as required a homer of barley to sow it, The homer: was very different from the omer:; the latter held about three quarts, the former seventy-five gallons three pints. Isaiah 5:10; Ezekiel 45:11-14; Hosea 3:2