'Days' in the Bible

And it came to pass after the death of Saul, when David had returned from the slaughter of the Amalekites, that David abode two days in Ziklag.

When thy days are fulfilled, and thou shalt sleep with thy fathers, I will set up thy seed after thee, which shall proceed out of thy bowels, and I will establish his kingdom.

And the counsel of Ahithophel, which he counselled in those days, was as if a man had inquired of the word of God: so was all the counsel of Ahithophel both with David and with Absalom.

And Barzillai said to the king, How many are the days of the years of my life, that I should go up with the king to Jerusalem?

And the king said to Amasa, Call me the men of Judah together within three days, and do thou attend here.

And there was a famine in the days of David three years, year after year; and David inquired of Jehovah. And Jehovah said, It is for Saul, and for his house of blood, because he slew the Gibeonites.

and he gave them into the hands of the Gibeonites, and they hanged them on the hill before Jehovah. And they fell all seven together, and were put to death in the first days of the harvest, in the beginning of barley harvest.

And they went through all the land, and came to Jerusalem at the end of nine months and twenty days.

And Gad came to David, and told him, and said to him, Shall seven years of famine come to thee in thy land? or wilt thou flee three months before thine adversaries while they pursue thee? or shall there be three days' pestilence in thy land? Now be aware and consider what word I shall bring again to him that sent me.