I thought you meant the physical suffering was efficacious alone for atonement. That said, I find little if any evidence His active obedience is anything other than fullfiling the LAw perfectly. I do not believe what He did for those 33 years while walking was much different than others in regards to suffering slander. Please do not think I am belittling our Lord, I see the prophets who "suffered' slander et al also.

What is left out more than his active obedience is the obedience His WHOLE life. We tend to look at our Lord only for the 3 years of His minisrty. But we forget He knew NO sin for His whole life. Only God incarnate could accomplish that. He knew NO sin from birth to death. Now that is truly amazing

There never was a sinner half as big as Christ is as a Savior.