'Ever' in the Bible

Did ever a people hear the voice of God speaking out of the midst of the fire, as thou hast heard, and live?

And thou shalt keep his statutes, and his commandments, which I command thee this day, that it may go well with thee, and with thy children after thee, and that thou mayest prolong thy days in the land, which Jehovah thy God giveth thee, for ever.

Oh that there were such a heart in them, that they would fear me, and keep all my commandments always, that it might be well with them, and with their children for ever!

Observe and hear all these words which I command thee, that it may go well with thee, and with thy children after thee for ever, when thou doest that which is good and right in the eyes of Jehovah thy God.

And thou shalt gather all the spoil of it into the midst of the street thereof, and shalt burn with fire the city, and all the spoil thereof every whit, unto Jehovah thy God: and it shall be a heap for ever; it shall not be built again.

then thou shalt take an awl, and thrust it through his ear unto the door, and he shall be thy servant for ever. And also unto thy maid-servant thou shalt do likewise.

For Jehovah thy God hath chosen him out of all thy tribes, to stand to minister in the name of Jehovah, him and his sons for ever.

if thou shalt keep all this commandment to do it, which I command thee this day, to love Jehovah thy God, and to walk ever in his ways; then shalt thou add three cities more for thee, besides these three:

An Ammonite or a Moabite shall not enter into the assembly of Jehovah; even to the tenth generation shall none belonging to them enter into the assembly of Jehovah for ever:

Thou shalt not seek their peace nor their prosperity all thy days for ever.

and they shall be upon thee for a sign and for a wonder, and upon thy seed for ever.

The secret things belong unto Jehovah our God; but the things that are revealed belong unto us and to our children for ever, that we may do all the words of this law.

For I lift up my hand to heaven, And say, As I live for ever,