May God continue to bless you and your ministry. A preacher on TV teaches that the Nation of Israel has salvation under the Old Covenant. That they don’t need to accept Jesus Christ or the New Covenant for entrance into God’s Kingdom. Is this a Biblical teaching? Or is it false and therefore makes him a false teacher?
This person was preaching a doctrine called Dual Covenant theology. But standing in Israel, Jesus said that the man who tries to enter the sheep pen through any way other than the gate is a thief and a robber (John 10:1)
Then He said He is the gate and whoever enters through Him will be saved (John 10:7-9)
Later He said no one can come to the Father except through Him. (John 14:6).
Finally, standing before the highest rulers of Israel, Peter said “Salvation is found in no one else for there is no other name under Heaven given to men by which we must be saved” (Acts 4:12).
Therefore anyone who claims the Jews can be saved by some other means than belief in Jesus is teaching false doctrine.