A.T. Robertson Commentary Luke 15:19

"I am no more worthy to be called your son: make me as one of thy hired servants." — Luke 15:19 (ASV)

No longer worthy (ουκετ αξιος). Confession of the facts. He sees his own pitiful plight and is humble.

As one (ως ενα). The hired servants in his father's house are high above him now.