That God is Father and every good notion of fatherhood flows out of Him provides the setting for the next statement of the creed: that God is almighty. There is wisdom in the sequence of descriptions of God here.
Without the notion of God as the perfect Father, the notion of God as almighty might invoke a negative reaction. Almightiness with no tempering characteristics could very well produce fear. Raw power alone does not invite relationship. It may inspire awe or terror, but not love. Imagine standing at the sea shore as a tsunami towers hundreds of feet high and the point is made.
On the other hand, to think of God as Father alone, without any qualifying statements would also lead to the wrong idea about God as Father. Especially if our human fathers were unable to keep their commitments or fulfill their promises. We must not measure God by what our human fathers were like. They were weak - God is almighty.
So the creed rightly reminds us that the God whom we confess is omnipotent - an idea found throughout the Bible
"For nothing is impossible with God." Luke 1:37
"with God all things are possible." Matt.19:37
If we refine that thought a bit we understand it to mean that God can do all that He wills to do - which is what the Bible must mean, because it also tells us
"...it is impossible for God to lie," Heb.6:18
Which is also to say God cannot do what is contrary to His nature.
Nor does His omnipotence mean that God can indulge in absurdities like making a square circle or making a rock so heavy He cannot lift it - these are logical contradictions, and being irrational are also contrary to God's nature.
God is not limited by nature - He can and often delights to work contrary to nature to show the greatness of His power. This is a comfort to all His people.
