Jesus gave them this answer, "I tell you the truth, the son can do nothing by himself; he can do only what he sees his Father doing, because whatever the Father does the son also does."
Although Jesus here claims to be equal to God he does not claim to surpass him. This statement cannot be turned on its head - the Father does what the son does - it is the father who initiates. The relationship between Father and son is perfect; the son follows the Father. Although all the Trinitarian principles are found within John's gospel, and although the word 'trinity' is never used, nevertheless we learn about the relationship of the component persons. Here we have two persons; both one God and the relationship between them as a Father to a son.
We see Jesus following his father's profession perfectly.