'Slaves' in the Bible

One of the wives of the sons of the prophets cried out to Elisha, “Your servant, my husband, has died. You know that your servant feared the Lord. Now the creditor is coming to take my two children as his slaves.”

But Elisha questioned him, “Wasn’t my spirit there when the man got down from his chariot to meet you? Is it a time to accept money and clothes, olive orchards and vineyards, sheep and oxen, and male and female slaves?