A.T. Robertson Commentary Romans 14:3

"Let not him that eateth set at nought him that eateth not; and let not him that eateth not judge him that eateth: for God hath received him." — Romans 14:3 (ASV)

Set at nought (εξουθενειτω). Present active imperative of εξουθενεω, to treat as nothing and so with contempt (Luke 23:11; 1 Thessalonians 5:20).

Judge (κρινετω). Present active imperative of κρινω, criticize. One side (the meat-eaters) despises the vegetarians, while the vegetarians criticize the meat-eaters.

Received him (αυτον προσελαβετο). Aorist middle (indirect) of προσλαμβανω, same verb used in verse 1. God took both sides into his fellowship without requiring that they be vegetarians or meat-eaters.