Perfect is the wrong word, the word is sinless.

That said, many errors could be considered sin. Often a mathematical error could be sin, one made by error, laziness, etc. So if sinless, Jesus would never have measured incorrectly or failed to measure, as that would have been due to laziness, a sin.

He also would not have made mathematical or other errors based on lack of knowledge. If you ask me something, and I speculate/guess and am wrong, that would be sin, as I am assuming knowledge I do not really know. If based on the facts at hand I give an answer, that later turns out to be wrong, that would not be sin.


Grace is not common.