What it says is that God takes our sin and the offenses we have committed against Him on Himself in the person of the Son of God.
Ha wu tiva ntiyiso malunghana ni "N'wana wa [Xikwembu] loyi [xi] n'wi rhandzaka, loyi ha yena hi kumaka ku ntshunxiwa hi nkutsulo, ku rivaleriwa ka swidyoho swa hina." - Kol.