Christiaan Johannes Nobels (1938 - 2015) was organist of the Canadian Reformed Church in Brampton, Ontario for many years.
Throughout his life he produced a number of simple arrangements for a number of Genevan Psalm melodies, as well as a number of hymns. In addition, just before his death he successfully completed a set of preludes for each of the 150 Genevan Psalm melodies.
The first part of this meditation is set around verse 1: "O LORD of hosts, almighty King, the praises of your house I sing."
The second part of the meditation is played on the 4' flute, as you hear the birds seeking shelter in and near God's house: "The sparrow finds a home to rest; the swallow builds herself a nest ..."
The chorale setting brings out the strong confession that "LORD, one day in your dwelling place is better than a thousand days
outside the courts of your salvation".
The postlude evokes the thought that "How blessed are those who trust in you."
You can find the music for this arrangement, along with many other works by Christiaan here: https://christiaannobels.com/