Did Dawkins and Tyson say that and what are the implications.

[Mark 13:13]

http://www.gotquestions.org/God-transcendent.html

To transcend means “to exist above and independent from; to rise above, surpass, succeed.” By this definition, God is the only truly transcendent Being. .......Being transcendent, God is both the unknown and unknowable, yet God continually seeks to reveal Himself to His creation, i.e., the unknown seeks to be known. Here is a paradox. Being transcendent, God is the incomprehensible Creator existing outside of space and time and thus is unknowable and unsearchable. Neither by an act of our will nor by our own reasoning can we possibly come to understand God or experience Him personally. God wants us to seek to know Him, yet how can the finite possibly know and understand the infinite when our minds and thoughts are so far beneath His.....Another aspect of God’s transcendent nature that places Him beyond the reach of His creation is His holiness and His righteousness.

Its a word I needed to get to know here so as to save myself a lot of typing every time I use the word GOD so people are clear the GOD I talk about.

I'm going to ask you something I end up asking every theist when I see them describing their divinity.
- How do you know all that? How has any person come to possess that knowledge about such a being?

The answer you will get is that God is beyond our comprehension and that all we can ever know about God is what God reveals to us through certain individuals he chooses to use for the purpose. God is the big boss and he gives the information on a need to know basis as God defines it not us.