Now when Daniel knew that the writing was signed, he went into his house; and his windows being open in his chamber toward Jerusalem, he kneeled upon his knees three times a day, and prayed, and gave thanks before his God, as he did aforetime. Now when Daniel knew that the writing was signed - He saw what was designed, and he knew whom he served.
His windows being open - He would not shut them to conceal himself, but "kneeled down with his face turned toward Jerusalem, and prayed thrice each day, giving thanks to God as usual." When the Jews were in distant countries, in prayer they turned their faces towards Jerusalem; and when in Jerusalem, they turned their faces towards the temple. Solomon, in his prayer at the dedication of the temple, 1 Kings 8:48, had entreated God to hear the prayers of those who might be in strange lands, or in captivity, when they should turn their faces towards their own land, which God gave unto their fathers; and towards the city which he had chosen, and the house which was dedicated to his name. It was in reference to this that Daniel turned his face towards Jerusalem when he prayed.