I have answered. The Atonement brings us into a relationship with God as sons and daughters. It brings us forgiveness and justification, wiping away all of our sins once and for all, and gives us eternal life, healing and victory.
Isaiah 53:5
But He was wounded for our transgressions, He was bruised for our guilt and iniquities; the chastisement [needful to obtain] peace and well-being for us was upon Him, and with the stripes [that wounded] Him we are healed and made whole.
I'm asking what the Atonement accomplished at the time of His resurrection when Jesus said it is finished.
Joh 19:30 When Jesus therefore had received the vinegar, he said, It is finished: and he bowed his head, and gave up the ghost.
What did the Atonement accomplish then, and who were the sheep He atoned for?
Jesus said, I came to lay my life down for the sheep.
Joh_10:11 I am the good shepherd: the good shepherd giveth his life for the sheep.
Joh_10:15 As the Father knoweth me, even so know I the Father: and I lay down my life for the sheep.