Dictionary of Biblical Words:
Under this simile are comprised the higher and deeper truths of Scripture. To the Hebrews (where the expression occurs) the mystery of the church would doubtless be one of these. Concerning such truths it is said that they belong to those who are of full age (or perfect).
Boyd’s Bible Dictionary:
(feed). Vegetable foods, soups, eggs, curds, honey, bread, and so forth, preferred by Hebrews to animal food (Lev. 26:26; Psa. 105:16; Ezek. 4:16). Animal food a feature of entertainments (Gen. 18:7; 1 Sam. 16:20; Luke 15:23). Fish used (Num. 11:5; Matt. 13:47-48; 15:34).
Concise Bible Dictionary:
Several Hebrew and Greek words of various significations are so translated, but scarcely any refer to flesh; the general meaning is food of any sort (Gen. 1:29-30; Ezek. 47:12; Acts 27:33-36).
Strong’s Dictionary of Greek Words:
Meaning:
from 5142; nourishment (literally or figuratively); by implication, rations (wages)