Update:

Since this was originally posted, the Big Brothers at You Tube took down the video that used the song and presented material regarding the oppression of Palestine. Here is a replacement video of Labi Siffre himself singing the song.
A Powerful video “Something Inside so Strong” (Lyrics).

Sumud = Steadfastness, the non-violent resistence of the Palestinians against land confiscation and ethnic cleansing. Like an old olive tree deeply rooted to the ground, those practicing sumud refuse to move-away despite political, economic and physical injustices committed against them.