'Due' in the Bible

Accordingly, you are to exercise due diligence to utilize this money to purchase bulls, rams, lambs, grain offerings, and drink offerings, and to offer them upon the altar of the Temple of your God, which is in Jerusalem.

I, Artaxerxes, in my capacity as king, hereby decree to all royal treasuries beyond the Euphrates River that whatever Ezra the priest-scribe of the Law of the God of Heaven, may require of you are to be performed with all due diligence,

Whatever is commanded by the God of Heaven is to be done with all due diligence for the Temple of the God of Heaven, or wrath will come against the king's realm and his sons.

"The land you are entering to possess is a morally unclean land due to the moral uncleanness of the nations of the lands along with their abominations that has filled it from one end to the other with their impurities. So, therefore, do not give your daughters in marriage to their sons, nor marry their daughters to your sons, and under no circumstances are you to seek their well-being or their wealth, so that you may remain strong, enjoying the best things the land has to give, and so that you may establish an inheritance for your children forever.'