Saint Ambrose, bishop and doctor: "go in search of the stray"

... if he finds it, amen, I say to you, he rejoices more over it than over the ninety-nine that did not stray.

-- Mt 18:12-14

At the end of the parable of the lost sheep Jesus recalled that God's love excludes no one: "So it is not the will of your Father who is in heaven that one of these little ones should perish." He affirms that he came "to give his life as a ransom for many"; this last term is not restrictive, but contrasts the whole of humanity with the unique person of the redeemer who hands himself over to save us. The Church, following the apostles, teaches that Christ died for all men without exception: "There is not, never has been, and never will be a single human being for whom Christ did not suffer."

-- CCC 605