I’ve been watching a pastor on TV who is obviously post-trib and goes so far to claim we have been in the Tribulation for several years. I have no quarrel with his teaching since I feel he is on target with his basic tenets of OSAS and it doesn’t bother me about “pre” or “post”. However, I note in John 6:37-40 that Christ says He will raise us up on the last day. Doesn’t that sound like “post-trib” to you?
I think you should be uncomfortable listening to a post trib teacher because he’s demonstrating an incomplete understanding of the difference between Israel and the Church and he doesn’t fully comprehend the doctrine of grace. For example the Biblical term for the so-called seven year Tribulation is Daniel’s 70th Week. It requires Israel to be back in covenant with God with a rebuilt Temple. It also means the Battle of Ezekiel 38 would be over and the anti-Christ would be on the scene overseeing a seven year treaty he negotiates with Israel at the end of that battle (Daniel 9:27). If the world has been in the “Tribulation” for several years these things would already have happened.
John 6:37-40 doesn’t say Jesus will raise all believers up on the last day. It says He’ll raise them up at the last day, which means at the time of the end times judgments. But it also refers to the resurrection. Jesus never directly mentioned the rapture in any of His teaching. It was first introduced by Paul about 20 years after the crucifixion. Both he (Romans 11:25) and James (Acts 15:13-18) say the Church will be gone before Daniel’s 70th Week begins.
Finally, you should care whether the rapture is pre or post trib because Jesus called it the worst time of judgment the world ever has or ever will see (Matt. 24:21). About 1/2 the world’s population won’t survive it. If you understood its magnitude you would be desperate to know for certain whether the Bible says you’ll have to suffer through it or not.