God, I’ll sing out your praise!
Your mercies are so great,
your anger is so slow to rise,
so ready to abate!
The pity that you show
to those that love your word,
is such as tender parents feel:
you love your children, Lord.
Your power subdues all sins
with your forgiving love;
as far the east is from the west
is all our guilt removed.
Your great compassions, God,
endure through timeless years;
and children's children ever find
your promise ends their fears.
Source: In Melody and Songs: hymns from the Psalm versions of Isaac Watts #58
My soul, repeat His praise. I. Watts. [Psalms ciii.] First published in his Psalms of David, &c, 1719, p. 267, in 8 stanzas of 4 lines, and headed, “Abounding Compassion of God; or, Mercy in the Midst of Judgment." It was given with the omission of stanzas ii., iv. and vi., in G. Whitefield's Hymns for Social Worship, &c, 1753, No. 9. This abbreviated form was repeated in M. Madan's Psalms & Hymns, 1760, No. 117, and others, and thus came into common use in the Church of England. It is also given in full in some collections, and again, altered in another way, in others. Its use is extensive.
--John Julian, Dictionary of Hymnology (1907)