However, the Bible doesn't explicitly give us the reason as to why God does it, but I believe that God expresses his relationship with us through his covenants.
Bibele a yi hi byeli leswaku leswi swi endleka njhani, kambe yi boxa xivangelo lexi endlaka hi tlangela swilo swo saseka - Xikwembu xi hi vumbe hi ri ni timfanelo ta xona.