Election is a cause that gains, works, helps, and promotes our salvation and what belongs to it...

God's eternal election does not just foresee and foreknow the salvation of the elect.  From God's gracious will and pleasure in Christ Jesus, election is a cause that gains, works, helps, and promotes our salvation and what belongs to it.  Our salvation is so founded on it that "the gates of hell shall not prevail against it" (Matthew 16:18), as is written in John 10:28, "No one shall snatch [My sheep] out of My hand,"  And again, "as many as were appointed to eternal life believed" (Acts 13:48).
~BOC, FSD, XI, 8