Are Slaves a Blessing from God to his Followers?

Those who want the Ten Commandments to be recognized today need to be careful what they wish for. Apparently we are expected to keep slaves.

Leviticus 25:44-46 

    As for your male and female slaves whom you may have: you may buy male and female slaves from among the nations that are around you. You may also buy from among the strangers who sojourn with you and their clans that are with you, who have been born in your land, and they may be your property. You may bequeath them to your sons after you to inherit as a possession forever. You may make slaves of them, but over your brothers the people of Israel you shall not rule, one over another ruthlessly. 

Exodus 21:7-11 

    "When a man sells his daughter as a slave, she shall not go out as the male slaves do. If she does not please her master, who has designated her for himself, then he shall let her be redeemed. He shall have no right to sell her to a foreign people, since he has broken faith with her. If he designates her for his son, he shall deal with her as with a daughter. If he takes another wife to himself, he shall not diminish her food, her clothing, or her marital rights. And if he does not do these three things for her, she shall go out for nothing, without payment of money.

And realize that no place in the New Testament where Jesus objects to the practice of slavery. But via inspiration he has Paul tell the Christians in Ephesus as well as Timothy how to treat slaves:

Ephesians 6:5 

    Slaves, obey your earthly masters with fear and trembling, with a sincere heart, as you would Christ,  

1 Timothy 6:1-4 

    Let all who are under a yoke as slaves regard their own masters as worthy of all honor, so that the name of God and the teaching may not be reviled. Those who have believing masters must not be disrespectful on the ground that they are brothers; rather they must serve all the better since those who benefit by their good service are believers and beloved.

Teach and urge these things. If anyone teaches a different doctrine and does not agree with the sound words of our Lord Jesus Christ and the teaching that accords with godliness, he is puffed up with conceit and understands nothing. He has an unhealthy craving for controversy and for quarrels about words, which produce envy, dissension, slander, evil suspicions,  

Either the entire Law or nothing you choose. . .