'Whether' in the Bible

“Indeed, ask now about the days that are past, [those days] which were before you, since the day that God created man on the earth, and ask from one end of the heavens to the other. Has anything been done like this great thing, or has anything been heard like it?

And you shall remember [always] all the ways which the Lord your God has led you these forty years in the wilderness, so that He might humble you and test you, to know what was in your heart (mind), whether you would keep His commandments or not.

you shall not listen to the words of that prophet or that dreamer of dreams; for the Lord your God is testing you to know whether you love the Lord your God with all your heart and mind and all your soul [your entire being].

“Now this shall be the priests’ portion from the people, from those offering a sacrifice, either an ox or a sheep: they shall give to the priest the shoulder and the two cheeks and the stomach.

“You shall not take advantage of a hired servant who is poor and needy, whether [he is] one of your countrymen or one of the strangers (resident aliens, foreigners) who is in your land inside your cities.

‘Cursed is he who is intimate with his [half] sister, whether his father’s or his mother’s daughter.’ And all the people shall say, ‘Amen.’

“For the Lord will vindicate His people,And will have compassion on His servants,When He sees that their strength (hand) is gone,And none remains, whether bond or free.