That is so plain. That is how we demonstrate love to God - to submit to Him through His commands.
He is just rearranging the words here. And really He means all of His words. Not just a couple. Not just a few.
Do you see the difference between the way it is in that translation and the way it is in most of our English translations? He is showing that the keeping of God's commandments is an on-going, continuous, process. It is not something that we just do every once in a while. But, rather, it is a way of life with us.
It is a process. It has a beginning. It has an end. And it is actively moving toward that end.
What we have just read there is the whole meaning of life for a Christian. If we are loving Christ, we will be keeping His commandments, and they are from the Father.