'Known' in the Bible

These also are regarded as Rephaim [an ancient people], as are the Anakim, but the Moabites call them Emim.

(It is also regarded as the land of the Rephaim [of giant stature], for Rephaim used to live there, but the Ammonites call them Zamzummin,

Know this day that I am not speaking to your children who have not known [by personal experience] and who have not seen [firsthand] the instruction and discipline of the Lord your God—His greatness, His mighty hand and His outstretched arm;

and the curse, if you do not listen to and obey the commandments of the Lord your God, but turn aside from the way which I am commanding you today, by following (acknowledging, worshiping) other gods which you have not known.

and the sign or the wonder which he spoke (foretold) to you comes to pass, and if he says, ‘Let us follow after other gods (whom you have not known) and let us serve and worship them,’

“If your brother, the son of your mother, or your son or daughter, or the wife you cherish, or your friend who is as [precious to you as] your own life (soul), entices you secretly, saying, ‘Let us go and serve other gods’ (gods whom neither you nor your fathers have known,

that some worthless and evil men have gone out from among you and have tempted the inhabitants of their city [to sin], saying, ‘Let us go and serve other gods’ (whom you have not known),

“If someone is found slain, lying in the field, in the land which the Lord your God gives you to possess, and it is not known who has killed him,

A people whom you do not know will eat the produce of your land and all the products of your labors, and you will never be anything but oppressed and exploited and crushed continually.

The Lord will bring you and your king, whom you appoint over you, to a nation which you and your fathers have never known; there you will [be forced to] serve other gods, [lifeless gods of] wood and stone.

And the Lord will scatter you among all the nations, from one end of the earth to the other; and there you will [be forced to] serve other gods, [lifeless gods of] wood and stone, which neither you nor your fathers have known.

Their children, who have not known [the law], will hear and learn to fear [and worship] the Lord your God, as long as you live in the land which you are crossing the Jordan to possess.”