Here goes your logic for the existance of a higher power with conciousness and interest in the human race; we know a higher power exists because the creation of the universe and everything in it require an eternal, immaterial, and boundless power to cause them in the first place, and we know this power has an interest in the human race because it came to earth in human form, shared in all human suffering, was crucified and was risen on the third day of being in his tomb. No more empirical evidence is needed then the 4 gospels and the book of Acts. You might say you dont trust the bibles accuracy or that what is in it about Jesus isn't really true, but the gospels are just as reliable as any other historical document and in fact even more so then. For example, any writings we have of Alexander the Great were written hundreds of years after the fact, when no one who was alive at the time could corroborate or refute what was written. Whereas the gospels were each written at the very latest within 100 years of Jesus' life, and Acts, which contains the apostles creed and speaks on various witnesses who saw the risen Christ, including a group of over 500 people, can be dated to no more then 40 years after Jesus' life. The relative closeness of these documents to the actual life of Jesus, lend paramount credibility to their testimony, as people who were alive during His life would easily have been able to refute any false claims and Christianity would never have flourished and spread as it did.
The proof, as they say, is in the pudding. The tomb was empty, this is undisputed, either by the jews or the romans; and given all that I've here discussed, the only logical answer for an empty tomb, hundreds of witnesses to a risen Jesus, and a new global religious movement based on adoration and following of this risen Christ, is precisely the higher power we surmised earlier, one who is all powerful, yet still concerns himself with the human race