18 Preface إِنّا سَخَّرنَا الجِبالَ مَعَهُ يُسَبِّحنَ بِالعَشِيِّ وَالإِشراقِYusuf AliIt was We that made the hills declare,1 in unison with him, Our Praises, at eventide and at break of day,See n. 2733 to 21:79. All nature sings in unison and celebrates the praises of God. David was given the gift of music and psalmody, and therefore the hills and birds are expressed as singing God’s praises in unison with him. The special hours when the hills and groves echo the songs of birds are in the evening and at dawn, when also the birds gather together, for those are respectively their roosting hours and the hours of their concerted flight for the day.