These were, no doubt, the same ones that accused Jesus of being a drunk and demon possessed.
But Jesus made no declaration of equality with God here.
The ability to resurrect and judge, Jesus says is an ability given to him by God, a grant, something Jesus did not have until it was given him. Jesus does not act on his own initiative but as was granted him.
In fact, Jesus adds that having life in himself was a gift, a possession given him from God, not something Jesus already had.
So in everything there quoted Jesus is saying he is in a subservient position to his Father. Jesus’ ability to resurrect, to judge, to have life in himself, to work on the sabbath...all these are grants or gifts given him, something he doesn't possesse until they are given him.
John's words about Christ reflect just what Paul said about “eikon” and “charakter”, it shows what something is like, an image, picture, a likeness like an engraving, not the same as or equal to the thing represented.