Hymn #16, #18 & #19 have the same Metre LM and have 3 versions.
Version 1 uses the tune from the hymn "Now That The Daylight Fills The Sky."
Version 2 uses the tune from the hymn "Come, O Creator Spirit, Come."
Version 3 uses the tune from the hymn "All People That On Earth Do Well."
Lent - Hymn #16
O God, creator of us all
Lent - Hymn #18
Jesus, the sun of ransomed earth
Hymn #18 is more suitable for Lauds or Morning Prayer
Lent - Hymn #19
Now let us all with one accord