Yes. Us. He desires to bless us, and we can either accept those blessings, or reject them. If you look at Judah, or the "jews" they are historically, only making up like a 1/4 of a 1% of the worlds population, yet they are the most successful people group in history. All throughout history.
See, they don't believe in Jesus the way they should, but they have kept the Torah, as prophesied by Israel, or Jacob. Those who keep the Torah, God HAS to bless. It's His word, and those that disobey it, He HAS to curse. Their societies will be rampant with paganism, atheism, aka "strong delusions", women dressing as men, men as women, disobedient children, diseases out the wazoo, financial struggles, homosexuality, etc. God desires to bless us, but if we reject His instructions, He HAS to curse us, even though He wishes and wills to bless us. So no, He can't do all things, because those things that aren't congruent with His word, He cannot do.
This is why Jesus said some of us will do greater things than He. His power wasn't just that He was Jesus, or God. His power, came from God, but because not only did He have faith, but He kept Torah, thereby causing Him to have the power of God, because God promises to bless those that keep it. All throughout the bible, we see great men of Faith and Torah that did incredible things. No one was quite as amazing or even close to Jesus, but they didn't know the things Jesus taught. Jesus taught us exactly how to mix Faith and Torah, giving us exactly what we need to bring about the fulness of the gentiles.