1 Yochanan 3:16-18

By this we have had da'as of ahavah, because that One on behalf of us laid down his nefesh; and we ought, on behalf of the Achim b'Moshiach, to lay down our nefashot. Now whoever has vital possessions of the Olam Hazeh and sees the Ach b'Moshiach of him being nitzrach (needy) and has no rachamim (mercy) on him and refuses gemilut Chesed, how does the ahavas HASHEM make ma'on in him? Yeladim, let us not have ahavah in dvar or in lashon but in ma'aseh and in Emes.