in the name of God
this text is a large meaning say about God.
لا حول و لا قوه الا با الله means any turning and any energy come from Allah.
this sentences can be understood when you see evens about you.
I help you to a better understanding about this sentences.
لا حول و لا قوه الابا لله
means any movement, any change, any turn, any birth, any making , any waking up, any relation is under the God' power.
But
for human, we do any work by our hand, God give us the order and tools for doing and anything for doing a particular work. but when we see ourselves, we can't see any of our body segments(big or tiny at any level) that we create or make for us.
God making is over of any created by human.

some of Quran sentences:
1- O mankind! A similitude has been coined, so listen to it (carefully): Verily! Those on whom you call besides Allah, cannot create (even) a fly, even though they combine together for the purpose. And if the fly snatched away a thing from them, they would have no power to release it from the fly. So weak are (both) the seeker and the sought.
الحج73

2- They have not estimated Allah His Rightful Estimate; Verily, Allah is All-Strong, All- Mighty.
الحج74

If you want to identify Allah read this sentenses.
Hadid (means Fe)1-6
1-In the name of God, Most Gracious, Most Merciful
Whatsoever is in the heavens and the earth glorifies Allah, and He is the All-Mighty, All- Wise.
His is the kingdom of the heavens and the earth, It is He Who gives life and causes death; and He is Able to do all things.
He is the First (nothing is before Him) and the Last (nothing is after Him), the Most High (nothing is above Him) and the Most Near (nothing is nearer than Him). And He is the All-Knower of every thing.
He it is Who created the heavens and the earth in six Days and then Istawa (rose over) the Throne (in a manner that suits His Majesty). He knows what goes into the earth and what comes forth from it, what descends from the heaven and what ascends thereto. And He is with you (by His Knowledge) wheresoever you may be. And Allah is the All-Seer of what you do.
His is the kingdom of the heavens and the earth. And to Allah return all the matters (for decision).
He merges night into day (i.e. the decrease in the hours of the night is added into the hours of the day), and merges day into night (i.e. the decrease in the hours of the day is added into the hours of the night), and He has full knowledge of whatsoever is in the breasts.
and you know why this God is owner of any doing.