1)There have been a few BBC Radio nan Gáidheal programmes about Rev MacLeóid and Thoir Dhomh do Làmh ... most are not now available on the i-player, but it appears a programme from 2 Oct 2016 will be broadcast again on Sunday 4 Oct 2020 at 15.30 (3.30 p.m.)
https://www.bbc.co.uk/sounds/search?q=Thoir+Dhomh+Do+Làmh

2) The words that Brian Warfield of "The Wolfe Tones" band put to the well-known Irish tune do have a similar message to that of Rev. MacLeóid's song. https://www.kinglaoghaire.com/lyrics/741-give-me-your-hand

3) Perhaps you "visit" this thread hoping to see lyrics to a different song.
If you would like to learn to sing "Teann a-nall 's thoir dhomh do làmh", there is an online lesson at http://www.bbc.co.uk/alba/foghlam/beag_air_bheag/songs/song_04/index.shtml

Or perhaps you are looking for Thoir dhomh do làmh gu'n teid sinn cuairt; lyrics and translation are at http://www.celticlyricscorner.net/tannas/thoir.htm. I haven't found an open access online recording yet. The Tannas recording can be found on Amazon tunes and on Spotify https://open.spotify.com/track/0T81WROXlg2DAoZxeqyTn2

4) James Thomson, who was crowned the bard of 1923 by An Comunn Gaidhealach and published a collection of poems, "Fasgnadh",in 1953, wrote a religious poem with the title "Thoir Dhomh do Làmh"