From what I've come across, I doubt that C. Wesley's original words were ever used much. This is one hymn that was changed early & often.

Here's what I found.
First published by Wesley in 1739 in Hymns and Sacred Poems.

George Whitefield published it in 1753, omitting verses 8 & 10 and beginning the alt. process:
V. 1 Lines 1 & 2 changed to Hark, the herald...
v. 5 line 1 heavenly changed to heaven born

M. Madan's Psalms and Hymns, 1860 Changed the last 2 lines of v. 2:
With th' angelic host...

In 1791 a Cambridge University printer included it as one of 5 hymns added to a printing of the Brady & Tate's New Version, thus passing it to the Anglican Church. The N.V. printing changed it from verses of 4 lines to 3 verses of 8 lines and the 2 line refrain added. This version did not include the 7/9 combination that started this thread off.

Nineteenth century printings include versions with 4 line verses that omit & rearrange the various verses; 8 line verses without the chorus; and 10 line versions.

The change of the "Pleased as man..." line came later. Hymns ancient and Modern included the change in 1861.

I'm confused reading my source here. "These alterations, now generally accepted, were given in J. Kempthorne's Select Portions of Psalms, &c, 1810, no. 27, but they are possibly older than that collection." This is in a new paragraph immediately below "man to dwell" so I think he's saying it was around by 1810. He gives no example of a printing between 1810 & 1861, which seems a long time. At the very least this change was later than the other changes & did not replace Wesley's original as quickly as the other changes did.

The 4 line verse version of Whitefield/Madan was included in the Supplement to Wesleyan Hymn Book 1830. Verse 2 was also omitted at that time. I think that accounts for the 7 verse version I found at CCEL.

There were also other alterations published, but they did not gain acceptance the way the Whitefield & Madan changes did.

@1880 John Julian wrote "The use of this hymn in its various forms has extended to all English speaking countries. It is found in a greater number of hymnbooks, both old and new, than any other of C. Wesley's compositions; and, amongst English hymns, it is equalled in popularity only by Toplady's "Rock of Ages" and Bp. Ken's Morning and Evening hymns, and is excelled by none. In literary merit it falls little, if anything, short of this honor."

My source for most of what I've given here is:
Julian, John. A dictionary of Hymnology. New York: Scribner's, 1892. At >1600 pages & small type, a truly impressive work.