Tosefta do Przysłów 16:4

A person should not taste anything until he makes a Beracha (blessing) [on it], as it is said, “To Hashem is the Earth and its fullness…” (Psalms 24:1) [A person] who receives pleasure from this world without a Beracha makes inappropriate use of sacred property, until all of the Mitzvot (commandments) [that must be done over this object] will permit it to him. A person should use his face, his hands and his feet only for the honor of his Creator, as it is said, “Every creation of Hashem is for His sake.” (Proverbs 16:4)

R. Aha said in the name of R. Akiva. Behold, it says: “If a thief is found tunneling in…” Is the house’s owner certain or uncertain? You must say he is uncertain. If they kill a person to save a life in a case of uncertainty, it is logical that they should push off the Sabbath, in order to save a life in a case of uncertainty. Behold, the commandments were only given to Israel that they might live by them, as it is written “Which a man shall perform and live by them” - he shall live by them, and not die by them. Nothing takes precedence over saving a life, save idolatry, sexual sins, and murder. In which circumstances are these things said? When it is not a time of persecution. But, when it is a time of persecution, even when it comes to the smallest of small commandments, a person should die for it, as it is written: “Do not profane my holy name” (Leviticus 22) and “the Lord made everything for his own sake” (Proverbs 16).