"For you to fall out of favor with the Father, Jesus would have to sin. You are the righteousness of God in Christ Jesus ALL the time."
Rob Rufus
"For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him."
2 Corinthians 5:21
We have been given Christ's own righteousness and goodness! His righteousness is our righteousness. You just can't get any more righteous than Jesus, and that is just how righteous, right with God and acceptable to God we are at all times. Christ is never going to fail, Christ is never going to fall out of God's favor, Christ is never going to be rejected by God - so neither are we! Thanks to Jesus, we are perfectly right with God now and forever!
A thought: I am always just as 'right with God' as Jesus is!