John 3: Believe and Obey

we read:

 36 The one who believes in the Son has eternal life; but the one who does not obey the Son will not see life, but the wrath of God remains on him.

The gospel of John has some flip-flops mixing verbs. Here, he is mixing "believe" and "obey". Many Christians would say:

 36 The one who believes in the Son has eternal life; but the one who does not BELIEVE the Son will not see life, but the wrath of God remains on him.

The verb in Greek used to "obey" is "apeitheó" that can be translated as "Disobey, be disobedient, refuse to believe".
The point is that the one who believes in the Son, submits to him because he is the king. This submission leads to obedience.
We are humans and sinners. I think that it is impossible to anyone claim that obeys fully the Lord; but to believe in him, leads to submission to him, and that leads to more and more obedience. We are disciples of Jesus, constantly learning from him.