'This day, God gives me', is indeed a paraphrase of the stupendous hymn attributed to St Patrick, which is known (in certain choral circles) as 'Paddy's Vest' and part of the tune makes a splendid triple jig. It has always been my favourite hymn, and I love all 6 verses of it!! What else could beat 'I bind unto myself today, the strong name of the Trinity!'? A great hymn for christenings and confirmations, it is perfect for ordinations too.LTS