I myself is an emphatic phrase that highlights the speaker's own role or opinion. It stresses personal involvement, contrast with others, or correction of assumptions.
And I myself I’m a little bit of a bookworm, and so I really loved the idea of being able to connect everybody that way since it’s something that we could all do from home, and then use something like Zoom to talk about it. Source: Internet
And I myself have from the first clearly asserted, again and again repeated, that I am ‘without authority’. Source: Internet
And I don't want to overly romanticize a way of living that requires a lot of very hard work and doesn't have a lot of the "mod cons," the connectivity and stimulation, that I myself would not want to do without. Source: Internet
Also, I myself helped excavate behind agricultural terrace walls at nearby Nazareth Village -- again, with associated Roman pottery. Source: Internet
I myself would adopt it in a heartbeat except that nature seems to present such strong evidence against it." Source: Internet
I myself did not know him, but he who sent me to baptize with water, he said to me ‘He on whom you see the Spirit descending, and remaining on him — he it is who baptizes with the Holy Spirit.’ Source: Internet