Romans 14:20-21

ABP_Strongs(i)
  20 G3361 Do not G1752 [5because of G1033 6food G2647 1destroy G3588 2the G2041 3work G3588   G2316 4of God]. G3956 All things G3303 indeed G2513 are pure, G235 but G2556 it is evil G3588 to the G444 man G3588   G1223 [2by G4348 3an occasion of stumbling someone G2068 1 who eats].
  21 G2570 It is good G3588   G3361 to not G2068 eat G2907 meats, G3366 nor G4095 to drink G3631 wine, G3366 nor anything G1722 in G3739 which G3588   G80 your brother G1473   G4350 stumbles against, G2228 or G4624 be caused to stumble, G2228 or G770 is weak.