Look not thou upon the wine earnestly, so as to inflame thine appetite towards it; in which sense men are forbidden to look upon a woman, Job_31:1Mat_5:28.
When it is red; which was the colour of the best wines in that country, which therefore are called blood, Gen_49:11Deu_32:14; and such were used by them in the passover.
When it moveth itself aright; when it sparkleth and frisketh, and seems to smile upon a man.