'Ever' in the Bible

And Abner called to Joab, and said, Shall the sword devour for ever? knowest thou not that it will be bitterness in the latter end? and how long shall it be ere thou bid the people return from following their brethren?

And afterwards David heard it, and he said, I and my kingdom are guiltless before Jehovah for ever from the blood of Abner the son of Ner:

It is he who shall build a house for my name, and I will establish the throne of his kingdom for ever.

And thy house and thy kingdom shall be made firm for ever before thee: thy throne shall be established for ever.

And thou hast established to thyself thy people Israel to be a people unto thee for ever; and thou, Jehovah, art become their God.

And now, Jehovah Elohim, the word that thou hast spoken concerning thy servant and concerning his house, fulfil it for ever, and do as thou hast said.

And let thy name be magnified for ever, saying, Jehovah of hosts is God over Israel; and let the house of thy servant David be established before thee.

and now let it please thee to bless the house of thy servant, that it may be before thee for ever; for thou, Lord Jehovah, hast spoken it; and with thy blessing shall the house of thy servant be blessed for ever.