'According to the Law' in the Bible

There was not a king like him before him, who turned to Yahweh with all of his heart and with all of his soul and with all of his might according to the law of Moses, nor did one arise like him afterwards.

Because the first time you did not, [and] Yahweh our God burst out against us, for we did not care for it according to the law."

Then they stood at their positions according to custom, according to the law of Moses the man of God. The priests were sprinkling the blood from the hand of the Levites.

So now let us make a covenant with our God to send away all of these women and their offspring, according to the advice of my lord and those who tremble at the commandment of our God. Let it be done according to the law.

"Go, gather all the Jews that are found in Susa and fast for me; do not eat or drink [for] three days, both night and day. I and my young girls will fast likewise, and then I will go to the king, which [is] not according to the law; if I perish, I perish.