Excuse me Jesus is the OT God . It’s Jesus’s use of The OT that shows how He is God . This is why they wished to stone or eventually crucify Him . Jesus showed that He is the God shown the OT . Jesus’s hitched everything to the OT . As for acting differently I don’t see that . The God in the OT is loving and long suffering. How many times did Isreal resell and God showed compassion on them ? Look at the all the laws given to the Jews about how to treat the poor , the widow or stranger . Much like what Jesus said . No , I see no difference at all .I can see the point Stanley may be making here. The OT God behaves differently than the NT Jesus.
Blessings
Bill