"Implies" is a fancy word meaning "I am merely guessing".
"Attained to perfection" is a phrase meaning that at one time Jesus was not perfect. Therefore, your choice of words indicate that you may believe that at one time, Jesus was not God.
I say that because one of the Divine attributes of Divinity is perfection, and you seem to be stating that through some work of Divine merit, Jesus added that attribute unto Himself something that He never possessed. The terminus of such theology is a form of modalism.
There are several theories on the Atonement:
7 Theories of the Atonement Summarized - Stephen D. Morrison
- The Moral Influence Theory This is favored by liberals because it enables humans to do good works unto others.
- The Ransom Theory This says that Satan is a kidnapper, and Jesus gave him (a fallen, rebellious angel) something so we could be free.
- Christus Victor This says that the Atonement gave victory over sin and death. (True, but not personally applicable).
- The Satisfaction Theory (Anselm)
- The Penal Substitutionary Theory
- The Governmental Theory In the Governmental Theory, Jesus Christ does not take the exact punishment we deserve, He takes a punishment
- The Scapegoat Theory This a philosophical and psychological approach,
Among the Western theologians, the most popular are # 4 and # 5. The Reformers took Anselm's theory that Jesus was the sin-bearer in that all of God's righteous anger at sin was satisfied because the death of Jesus a propitiation, and that horrid act made it so that everyone can go to heaven.
The Reformers made it more personal with the Penal Substitutionary Theory. That said that we who are all sinners (Romans 3:23) need to be punished individually and thus go to hell. Instead, Jesus paid for the sins of the elect, who fully trust Jesus and the work He did on the cross as sufficient to erase all our sins (we, who are believers) and therefore His penalty becomes our guarantee to enter heaven.
The difference between the theories 4 and 5 is that #4 us a universal application, and that #5 is a particular and personal application of the Atonement. As you may guess, I favor #5 as the most complete explanation of the Atonement.
Hope this helps things!