Proverbs 23:6-8

Eat not thou the bread of him that hath an evil eye Of an envious or covetous man, who secretly grudges thee the meat which is set before thee. For as he thinketh in his heart, so is he Thou must not judge of him by his words, for in them he professes kindness, (as it follows,) but by the constant temper of his mind, which he hath fully discovered to all that know him by the course of his life. Eat and drink, saith he, but his heart is not with thee He hath no sincere love to thee, but inwardly grudges thee that which he outwardly offers thee. The morsel, &c ., shall thou vomit up again When thou perceivest his churlish disposition and conduct, his meat will be loathsome to thee, and thou wilt wish that thou hadst never eaten it; and lose thy sweet words Thy pleasant discourse, wherewith thou didst adorn his table, and design both to delight and profit him, is lost, and of no effect to him, and thou wilt be ready to repent of it.