Is God ever exclusive? That God is exclusive ought to be clear to every student of the Bible. From the beginning of time to the present, God has made distinction between those who serve Him and those who do not.
When Adam and Eve sinned, God pronounced that Adam would return to the dust of the earth and “sent him out from the garden of Eden” (Gen 3:19, 23).
God had regard for Abel’s faithful offering but did not regard Cain’s offering because it was not by faith.
Some years later [God “blotted out man from the face of the earth through the flood] (Gen 6:5-7). Fortunately, Noah was a righteous man and found favor in the eyes of God… God made a way for those who loved Him by the building of [the] ark.
One can only imagine the horror in the hearts of the wicked people of that day when the rains began. How they must have wanted to be on that ark! But, the door was closed. God excluded them.
It might surprise many today to realize God excludes those who disobey.
(Phil Sanders; “Adrift: Postmodernism in the Church”; Page 135)
There is an “ark” today – it is The Church of Christ – the Church Christ bought and paid for with His own blood. And, how do we get into His Church – His Body (Eph 1:22-23)? “For Christ also suffered once for sins, the righteous for the unrighteous, that he might bring us to God, being put to death in the flesh but made alive in the spirit, in which he went and proclaimed to the spirits in prison, because they formerly did not obey, when God’s patience waited in the days of Noah, while the ark was being prepared, in which a few, that is, eight persons, were brought safely through water. **Baptism, which corresponds to this, now saves you**… through the resurrection of Jesus Christ” (1 Pet 3:18-21).
“And being made perfect, He became the source of eternal salvation to all who *obey* Him” (Heb 5:9). We ought to make sure that our beliefs – and actions – are in line with Christ’s teaching so that we may *obey* Him thereby gaining His eternal salvation.
Have you obeyed Christ through baptism into His death (cf. Rom 6:3)? Only then can you be added to His one and only Church (cf. Acts 2:38, 47).