SEV Biblia, Chapter 7:2
De todo animal limpio te tomarás de siete pares, macho y su hembra; mas de los animales que no son limpios, dos, macho y su hembra.
Clarke's Bible Commentary - Genesis 7:2
Verse 2. Of every clean beast] So we find the distinction between clean and unclean animals existed long before the Mosaic law. This distinction seems to have been originally designed to mark those animals which were proper for sacrifice and food, from those that were not. See Leviticus 11.
Matthew Henry Commentary
Verses 1-12 - The call to Noah is very kind, like that of a tender father to his children to come in-doors when he sees night or a storm coming. Noa did not go into the ark till God bade him, though he knew it was to be his place of refuge. It is very comfortable to see God going before u in every step we take. Noah had taken a great deal of pains to buil the ark, and now he was himself kept alive in it. What we do in obedience to the command of God, and in faith, we ourselves shal certainly have the comfort of, first or last. This call to Noah remind us of the call the gospel gives to poor sinners. Christ is an ark, in whom alone we can be safe, when death and judgment approach. The wor says, "Come;" ministers say, "Come;" the Spirit says, "Come, come int the Ark." Noah was accounted righteous, not for his own righteousness but as an heir of the righteousness which is by faith, Heb 11:7. He believed the revelation of a saviour, and sought and expected salvatio through Him alone. Thus was he justified by faith, and received tha Spirit whose fruit is in all goodness; but if any man have not the Spirit of Christ, he is none of his. After the hundred and twent years, God granted seven days' longer space for repentance. But thes seven days were trifled away, like all the rest. It shall be but seve days. They had only one week more, one sabbath more to improve, and to consider the things that belonged to their peace. But it is common for those who have been careless of their souls during the years of their health, when they have looked upon death at a distance, to be a careless during the days, the few days of their sickness, when they se death approaching; their hearts being hardened by the deceitfulness of sin. As Noah prepared the ark by faith in the warning given that the flood would come, so he went into it, by faith in this warning that is would come quickly. And on the day Noah was securely fixed in the ark the fountains of the great deep were broken up. The earth had within it those waters, which, at God's command, sprang up and flooded it; an thus our bodies have in themselves those humours, which, when God pleases, become the seeds and springs of mortal diseases. The window of heaven were opened, and the waters which were above the firmament that is, in the air, were poured out upon the earth. The rain come down in drops; but such rains fell then, as were never known before of since. It rained without stop or abatement, forty days and fort nights, upon the whole earth at once. As there was a peculiar exercis of the almighty power of God in causing the flood, it is vain an presumptuous to attempt explaining the method of it, by human wisdom.
Original Hebrew
מכל 3605 הבהמה 929 הטהורה 2889 תקח 3947 לך שׁבעה 7651 שׁבעה 7651 אישׁ 376 ואשׁתו 802 ומן 4480 הבהמה 929 אשׁר 834 לא 3808 טהרה 2889 הוא 1931 שׁנים 8147 אישׁ 376 ואשׁתו׃ 802
