Jesus’ obedience was complete, right up to his last day. Thus, “he became the source of eternal salvation to all who obey him” Heb 5.9.
Our obedience must also be complete, in order to receive from his hand eternal salvation.
We are also ready to punish every act of disobedience, whenever your obedience is complete.
2 Cor 10.6 NET
Paul told the Corinthians: “you excel in everything—in faith, in speech, in knowledge, and in all eagerness and in the love from us that is in you” 2 Cor 8.7. But something was still lacking in their obedience: “make sure that you excel in this act of kindness too.” He told them “to finish what you started” v. 11.
Similarly, to the rich young ruler who had kept the commandments since his youth, Jesus had said, “You lack one thing” Mk 10.21.
God’s commandment is to love him with all the heart, with all the soul, with all the mind, with all one’s strength.
Even though “we all stumble in many ways” Jas 3.2, we may still have complete obedience, for this includes repentance when we err. And in our repentance, we become people, like David, after God’s heart, “who will do all [his] will” Acts 13.22 ESV.