'Preserve' in the Bible

And the LORD commanded us to do all these statutes, to fear the LORD our God, for our good always, that he might preserve us alive, as it is at this day.

But if the man doesn’t want to marry his sister-in-law, she must go to the elders at the city gate and say, ‘My brother-in-law refuses to preserve his brother’s name in Israel. He isn’t willing to perform the duty of a brother-in-law for me.’

then she is to approach her brother-in-law in the presence of the elders, remove his sandal, spit in his face, and say in response, "May this be done to the man who does not preserve the lineage of his brother.'