The fact of life on earth in the time of the Hebrews was that slavery was part of life. If you were organizing and raising up a people and nation at that time would you not deal with it? God did.
The way He dealt with that particular wickedness and oppression by wicked mankind was to set rules regarding it. God used slavery also because His rebelling people had to be punished at times and this involved them losing the freedom He gave them!
God also used the military of wicked nations to punish other nations as required. That does not mean He likes war. That does not mean He thought the tools used to correct His people were pure and holy or righteous.
God used soldiers to kill His son. That does not mean that the Roman empire and military were pure and good! On the contrary.
God used Satan to test the couple in the garden. That does not mean Satan was good.
God used the flood to rid the world of great evil. That does not mean huge floods are wonderful and good.
God used fire from heaven to destroy perverted wicked cities. That does not mean that He recommends you sticking your head in a barbq!
God uses what is here in the world for His purposes, and He tells us all that is in the world is evil!
What is good is to love people and show them Salvation, and feed the poor and heal, and do good. Believers are to treat employees (whether called slaves, soldiers, sweat shop workers, cashiers, underground economy employess, maids etc etc) fairly and kindly. That is what God says about slavery.
He also died a horrible painful death to set slaves free! All people on earth that have not accepted Christ are slaves!!!!!!!!!!!!!!
Don't try and tell us He does not want to set them free.
Did not address the issue . . .
The fact of life of the Hebrews is the laws and mandates of God. It is described as being mandated by God as far as foreign captured slaves. The references have been already provided many times.
No where in the Bible is slavery condemned.