My Uncle is dying as well, and he too refused the last rites, ie. Anointing of the sick. In his case, he’s hasn’t attended mass for so long, I think it’s about simply getting stuck in a rut and thinking he doesn’t want to face up to the experience, or I suppose as well, doesn’t want to recognize this last sacrament as being necessary.
I’ll pray for your Father, I surely hope he will at least be open to having another priest do it, and you can remind him with scripture along how important it is to forgive, especially due to the fact, he doesn’t have time to mull it over to reconcile. He does this for himself at this point, and nothing more, it’s for his own good he does this, he really doesn’t want to carry this one over to the next life.
Hail Mary, full of Grace
The Lord is with thee
Blessed Art thou among woman
Blessed is the fruit of thy womb
Holy Mary, Mother of God
Pray for us sinners
Now, and at the hour of our death
Amen