We can trust in God and His word that those who trust in His Son will be saved, we have no reason to doubt God will do what He said He will do.
His want is to send us out to reach to tell us His desire not to tell us they will be saved only those in Jesus will be saved according to His word.
2 Corinthians 5:
16 So from now on we regard no one from a worldly point of view. Though we once regarded Christ in this way, we do so no longer. 17 Therefore, if anyone is in Christ, the new creation has come:[Or Christ, that person is a new creation.] The old has gone, the new is here! 18 All this is from God, who reconciled us to himself through Christ and gave us the ministry of reconciliation: 19 that God was reconciling the world to himself in Christ, not counting people’s sins against them. And he has committed to us the message of reconciliation. 20 We are therefore Christ’s ambassadors, as though God were making his appeal through us. We implore you on Christ’s behalf: Be reconciled to God.
"Secondly, IN CHRIST JESUS THERE IS LIFE,
for he says: "Ye will not come to me that ye might have life." There is no life in God the Father for a sinner; there is no life in God the Spirit for a sinner apart from Jesus. The life of a sinner is in Christ. If you take the Father apart from the Son, though he loves his elect, and decrees that they shall live, yet life is only in his Son. If you take God the Spirit apart from Jesus Christ, though it is the Spirit that gives us spiritual life, yet it is life in Christ, life in the Son. We dare not, and cannot apply in the first place, either to God the Father, or to God the Holy Ghost for spiritual life. The first thing we are led to do when God brings us out of Egypt is to eat the Passover—the very first thing. The first means whereby we get life is by feeding upon the flesh and blood of the Son of God; living in him, trusting on him, believing in his grace and power. Our second thought was—there is life in Christ."
C.H.Spurgeon