15:1-21 – This is a song of redemption – God has redeemed His people; a song of thanksgiving – we give thanks for God’s redemption; and a song of hope – we look forward to the complete fulfilment of God’s redemption. This is not only a ‘song of God’s people.’ It is also the song of Moses, a personal song. This is worship – not a mere formality, but worship which arises from the depths of Moses’ heart. Deeply moved by the grace and glory of God, Moses pours his heart out to God in worship: (i) He praises the God of grace – ‘my strength… my song… my salvation’ (2). (ii) He praises the God of glory – God triumphs ‘gloriously’ (1). His ‘glorious’ power is demonstrated in His ‘glorious’ deeds (6,11). (iii) Worshipping this God of grace – the redeeming God (13) – and glory – the reigning God (18) – , we say, ‘You are my God, and I will praise You’ (Psalm 118:28). Let us worship God – personally as well as publicly.