Once when the brethren spoke of clearing out the nests from the church tower, because of the clamour of the daws in the morning and evening twilight, the Novice-master--for this was Oswald's title--besought them to remember the words of the Psalmist, King David: "The sparrow hath found an house and the swallow a nest for herself, where she may lay her young, even thine altars, O Lord of Hosts."