SEV Biblia, Chapter 18:12
Y tomó Jetro, el suegro de Moisés, holocaustos y sacrificios para Dios; y vino Aarón y todos los ancianos de Israel a comer pan con el suegro de Moisés delante de Dios.
Clarke's Bible Commentary - Exodus 18:12
Verse 12. Jethro-took a burnt-offering] hl[ olah. Though it be true that in the patriarchal times we read of a burnt- offering, (see Gen. xxii. 2, &c.,) yet we only read of one in the case of Isaac, and therefore, though this offering made by Jethro is not a decisive proof that the law relative to burnt-offerings, &c., had already been given, yet, taken with other circumstances in this account, it is a presumptive evidence that the meeting between Moses and Jethro took place after the erection of tabernacle. See the note on "ver. 5". Sacrifices for God] µyjbz zebachim, slain beasts, as the word generally signifies. We have already seen that sacrifices were instituted by God himself as soon as sin entered into our world; and we see that they were continued and regularly practiced among all the people who had the knowledge of the only true God, from that time until they became a legal establishment. Jethro, who was a priest, (chap. ii. 16,) had a right to offer these sacrifices; nor can there be a doubt of his being a worshipper of the true God, for those Kenites, from whom the Rechabites came, were descended from him; 1 Chron. ii. 55. See also Jeremiah 35.
And Aaron came, and all the elders of Israel to eat bread] The burnt-offering was wholly consumed; every part was considered as the Lord's portion, and therefore it was entirely burnt up. The other sacrifices mentioned here were such that, after the blood had been poured out before God, the officers and assistants might feed on the flesh. Thus, in ancient times, contracts were made and covenants sealed; See note on "Gen. xv. 13", &c. It is very likely, therefore, that the sacrifices offered on this occasion, were those on the flesh of which Aaron and the elders of Israel feasted with Jethro.
Before God.] Before the tabernacle, where God dwelt; for it is supposed that the tabernacle was now erected. See the note on "ver. 5"; and see Deut. xii. 5-7, and 1 Chronicles xxix. 21, 22, where the same form of speech, before the Lord, is used, and plainly refers to his manifested presence in the tabernacle.
Matthew Henry Commentary
Verses 7-12 - Conversation concerning God's wondrous works is good, and edifies Jethro not only rejoiced in the honour done to his son-in-law, but in all the goodness done to Israel. Standers-by were more affected with the favours God had showed to Israel, than many were who received them Jethro gave the glory to Israel's God. Whatever we have the joy of, God must have the praise. They joined in a sacrifice of thanksgiving Mutual friendship is sanctified by joint worship. It is very good for relations and friends to join in the spiritual sacrifice of prayer an praise, as those that meet in Christ. This was a temperate feast; the did eat bread, manna. Jethro must see and taste that bread from heaven and though a gentile, is welcome: the gentiles are welcomed to Chris the Bread of life.
Original Hebrew
ויקח 3947 יתרו 3503 חתן 2859 משׁה 4872 עלה 5930 וזבחים 2077 לאלהים 430 ויבא 935 אהרן 175 וכל 3605 זקני 2205 ישׂראל 3478 לאכל 398 לחם 3899 עם 5973 חתן 2859 משׁה 4872 לפני 6440 האלהים׃ 430