I’ve discovered this new gizmo that lets me look stuff up on the Interweb. Goober or somesuch. I used it to find the meaning of ‘doulos’ that the absence of dictionary prevented you from doing. All of the results Goober brought up described doulos thusly:

Doulos (Ancient Greek: δοῦλος, Greek: δούλος, Linear B: do-e-ro) is a Greek masculine noun meaning “slave”. Wikipedia

Doulos (a masculine noun of uncertain derivation) – properly, someone who belongs to another; a bond-slave, without any ownership rights of their own. Biblehub (Christian site)

…anyone could become a slave, in a sense. However, once someone was sold into slavery, they remained a slave for life, and all of their offspring automatically became slaves as well. The only standard way of obtaining freedom was to earn enough money to pay your owner back as much as he had paid for you in the first place. This was a nearly impossible task to accomplish because slave owners did not often facilitate their slaves ability to earn money on the side. As such, most slaves, and their offspring remained slaves for the totality of their lives. Slavesandsons (Christian site)

Doulos is a Greek word in the Bible that has only one true historical option for accurate translation into English, which is slave. It literally means to be owned by someone for a lifetime. This word is found at least 127 times in 119 verses in the New Testament scriptures. It is used in the context of human slavery, which, sadly, was very common throughout the ancient Roman Empire for hundreds of years. Recorder.com (Christian site)

You’ll see none of them say what you say, Don. None think slavery was a nice amicable arrangement. Christian sites especially emphasise how slavery was a downright awful thing so’s they can sermonise about how Jesus saves us from slavery to sin.

If you’re going to reduce real world, God-approved slavery to something akin to a nice comfortable arrangement, you diminish the metaphor of Christ’s redemptive work to… not much at all. (Which of course it isn’t.) I noticed you didn’t comment on this point when I mentioned it in an earlier post and here you are digging yourself in deeper with your ‘slavery wasn’t really all that bad’. Good work, Don!

You’re certainly enslaved to all this Christian mumbo-jumbo. To Christ though, not really. There’s no such being and you certainly don’t give the impression of being a slave in any real world sense. Perhaps that’s because you have no understanding of what slavery was and is.