Christians, what is meant in these verses in the Bible?

You are correct. Jesus is not God. But God has purposed a Kingdom to rule this earth in righteousness and has chosen Jesus to be the king of that Kingdom. As for the verses you refer to; many claim to be followers of Jesus and claim to perform wonderful works in his name. But they are hypocrites and are not really his disciples. So when the time comes for him to take full control as king of God's kingdom and remove those who are not on his side he will not acknowledge these hypocrites and they will have no share in that kingdom whether in heaven with him as co-rulers or as subjects of that kingdom living on the paradise earth.