Jerome
Patristic
c. A.D. 347–420
“Verse 10. "Now when Daniel learned of it, that is, of the law which had been enacted, he entered his house, and with the windows in his upper room opened up in the direction of Jerusalem, he continued to bow his knees three times a day and worshipped, and made confession before his God just as he was previously accustomed to do." We must quickly draw from our memory and bring together from all of Holy Scripture all the passages where we have read of domata, which mean in Latin either "walled enclosures" (menia) or "beds" or "sun-terraces," and also the references to anogaia, that is, "upper rooms." For after all, our Lord celebrated the passover in an upper room (Mark 14:15, Luke 22:12), and in the Acts of the Apostles the Holy Spirit came upon the one hundred and twenty souls of believers while they were in an upper room (Acts 1:13). And so Daniel in this case, despising the king's commands and reposing his confidence in God, does not offer his prayers in some obscure spot, but in a lofty place, and opens up his windows towards Jerusalem, from whence he looked for the peace . He prays, moreover, according to God's behest, and also according to what Solomon had said when he admonished the people that they should pray in the direction of the Temple. Furthermore, there are three times in the day when we should bow our knees unto God, and the tradition of the Church understands them to be the third hour, the sixth hour, and the ninth hour. Lastly, it was at the third hour that the Holy Spirit descended upon the Apostles (Acts 2:15) . It was at the sixth hour that Peter, purposing to eat, ascended to the upper room for prayer (Acts 10:9). It was at the ninth hour that Peter and John were on their way to the Temple (Acts 3:1).”