'Jesus', isn't a Rabbi fisherman who was partly deified, He was divine at conception, hence why the wise men went to honour Him. 'Jesus', in Spirit form, is simply an aspect of the father, //'one' with the father, so forth. Thusly, Jesus is God, and of course possesses the Godly attributes, because per Matthew 28:18
No human /non-deity, would be given all authority. Now, this is also why, Jesus had all authority, in human form/incarnation, in Israel, as well. This is why He was able to modify the laws, and also take on //contextual sin, for others //we can't do that, for example.