Oz,
Why would it seem undesirable for some of the readers to serve the true God? Allow the Word of God to answer...
"There is none that understandeth,
there is none that seeketh after God." (Romans 3:11 KJV)
Since there are people who genuinely desire to serve the Lord it is obviously because He intervenes to enable, motivate, and make them affix themselves to the Truth.
"And not only this; but when Rebecca also had conceived by one, even by our father Isaac;
(For the children being not yet born, neither having done any good or evil, that
the purpose of God according to election might stand, not of works, but of him that calleth
It was said unto her, The elder shall serve the younger.
As it is written,
Jacob have I loved, but Esau have I hated." (Romans 9:10-13 KJV)
Those ancient Israelite saints who clung to the Lord and served only Him were called by Him to be His saints, for He loved them even before the foundation of the cosmos. Those individuals who did not desire to serve the Lord were as they were -- serving idols and probably practicing will worship -- because God did not want them in the first place.
As for them choosing which false religion to subscribe to, either worshiping the gods their ancestors served beyond the Euphrates or the gods of the Amorites, that's obvious...
"The heart is deceitful above all things, and
desperately wicked: who can know it?" (Jeremiah 17:9 KJV)
As M. Henry said in my previous post, the choice was between the two false religions or God. They chose God out their own will.
Man can choose which false gods to worship out of the free will of his fallen and corrupt nature. I'll give him that!
In conclusion, there are a lot of passages in Scripture that speak of choosing God or something else, oh yes,
but what is it that motivates one to choose God or a false god?
Before I was a Christian I was an idolator, blasphemer, fornicator, and a drunkard who despised the Saints and had no intention of believing on Jesus. But look what happened -- God saved me! I read the words of Jesus, wept, and my heart became affixed to Him.
"And he said, Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father." (John 6:65 KJV)
Glory be to God, my Savior, whose grace is profound.