The Psalmist David in his Shepherd Psalm reminds us that; "Yea, though I walk through the valley of the shadow of death, I will fear no evil: For Thou art with me; Thy rod and Thy staff they comfort me" 23.4.

Dalili da aka ba aka ba da sassan yankunan da suka dace wanda masu sayarwa za su iya amfani da su don gudanar da bincike da gwada gwagwarmayar fasahar su da kuma inganta sakon su don sake tabbatar da masu amfani.
