For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
It is true that the baby Jesus was born without inherited sinful nature, but think of what God was risking!
Being fully human, God's Son was not "immune" to the possibility of sinning. He was tempted just as we all are (Heb 4:15), and had he succumbed just once then God would be tainted by sin, the Trinity would be shattered.
Indeed, this is what happened when Jesus took upon himself our sins on the cross (Mat 27:46, Mark 15:34), but by being sinless and thus not deserving of death, God raised and restored him to everlasting life (Acts 2:32)
Philippians 2:5-11 (NIV)
In your relationships with one another, have the same mindset as Christ Jesus:
Who, being in very nature God,
did not consider equality with God something to be used to his own advantage;
rather, he made himself nothing
by taking the very nature of a servant,
being made in human likeness.
And being found in appearance as a man,
he humbled himself
by becoming obedient to death—
even death on a cross!
Therefore God exalted him to the highest place
and gave him the name that is above every name,
that at the name of Jesus every knee should bow,
in heaven and on earth and under the earth,
and every tongue acknowledge that Jesus Christ is Lord,
to the glory of God the Father.