You are getting Arminian-influenced, dispensational teaching not accountable by Confession (before you even get to other issues).
Could you ever learn something biblically true from this person? Probably yes, but it's more likely you will get an overall unbiblical systematic framework.
Ask your friend if he can recommend something by Spurgeon, Piper or Sproul.
Post Tenebras Lux; "And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever." - Revelation 11:15