Warumi 9 : 16 Romans chapter 9 verse 16

Basi, kama ni hivyo, si katika uwezo wa yule atakaye, wala wa yule apigaye mbio; bali wa yule arehemuye, yaani, Mungu.
soma Mlango wa 9

So then it is not of him who wills, nor of him who runs, but of God who has mercy.