I am trying to find the places in the Bible where the Jews are God’s covenant people. How can I find this in Logos?
Well, it's an underlying assumption for understanding 90% of the Bible ... I'd start with the Abrahamic covenant (read Genesis) then the Mosaic covenant (read Exodus), then run searches on covenant and God's people (probably using sense)
You have to start with Abraham, then Moses and the Law, then Jeremiah 31 (esp. the New Covenant), Dan 9:20-27, then Romans 9-11. There are many others but use cross-references.