You forgot the Psalms 109:6 and Zech. 3:2, "And the LORD said unto Satan, The LORD rebuke thee, O Satan; even the LORD that hath chosen Jerusalem rebuke thee: is not this a brand plucked out of the fire?" quotes.
God silences Satan by choice. But He doesn't do anything else to Him. Satan, after all, was 'just doing his job,' being the prosecuting attorney.
It doesn't make him a 'fallen angel' or Babylonian Lucifer. In Judaism, Satan is very much part of the "God-Squad."