I'm sure your visitors were sincere but I urge you to examine their claims very carefully. Sincerity is not the test of truth; only God's Word is our final authority.
You see, it's significant that you mention they showed you these things from "their Bible." The reason is because this group you mention has been forced to make its own "translation" of the Bible to support their ideas—a "translation" which any scholar of the Bible's original languages would tell you distorts the Bible's clear meaning. In my view, this is a serious matter; the Bible itself warns us against adding to its words or twisting their true meaning (see Revelation 22:18).
The Bible is clear: Jesus Christ alone was God in human flesh, sent from heaven to save us from our sins. He wasn't just a godly man; He was God in human flesh—fully God and yet also fully man. The Bible says, "For in Christ all the fullness of the Deity lives in bodily form" (Colossians 2:9).
Why is this important? The reason is because we cannot save ourselves. No matter how good we are, we will never be good enough, because God's standard is perfection. That is why we need a Savior—and God Himself provided the Savior we need by sending His only Son into the world to die for us. Don't go down a false road, but by faith turn to Christ and open your heart to Him.