'Within' in the Bible

Thus says Yahweh, 'Look, I [am] going to raise up evil against you from [within] your house, and I will take your women before your eyes, and I will give them to your neighbor, and he shall sleep with your wives {in broad daylight}.

Then the king said to Amasa, "Summon for me the men of Judah [within] three days, {and be here yourself}."