Jesus taught that God is deeply concerned if even one person goes astray from him.

Matthew 18:10-14

10-11 10-11“Make an effort that you (pl) do not despise even one of these children. I tell you (pl) truly that since the angels live in heaven in the presence of my Father, they will report to him if you mistreat the children.[fn] 12 What do you (pl) think you would do in the following situation? If you had 100 sheep and one of them got lost, you would surely leave the 99 sheep that are on the hill and go and search for the lost one [RHQ], would you not? 13 If you found it, I affirm to you (pl) that you would rejoice very much. You would be happy that 99 sheep did not stray away, but you would rejoice even more because you had found the sheep that had strayed away. 14 In the same way that shepherds do not want one of their sheep to stray away, so God, your Father in heaven, does not want even one of these children to go to hell.”