Deuteronomy 22:7

Overview - Deuteronomy 22
Of humanity towards brethren.
The sex is to be distinguished by apparel.
The dam is not to be taken with her young ones.
The house must have battlements.
Confusion is to be avoided.
12 Fringes upon the vesture.
13 The punishment of him that slanders his wife.
22 Of adultery;
23 of rape;
28 of fornication;
30 of incest.
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Deuteronomy 22:7  (King James Version)
But thou shalt in any wise let the dam go, and take the young to thee; that it may be well with thee, and that thou mayest prolong thy days.

But thou shalt
The extirpation of any species of birds, whether edible or birds of prey, is often attended with serious consequences, and is always productive of evil; to prevent which was the object of this law. Palestine is situated in a climate producing poisonous snakes and scorpions, and between deserts and mountains, from which it would be inundated by them, as well as with immense swarms of flies, locusts, and mice, if the birds which feed upon them were extirpated. In a moral point of view, it may have been intended to inculcate a spirit of mercy and kindness, and to prevent the exercise of cruelty even towards a sparrow; for he who is guilty of such cruelty will, if circumstances be favourable, be cruel to his fellow-creatures.

that it may

thou mayest
Proverbs 22:4