Expendability for God's glory

Every day I can I read just a short devotional thought from John MacArthur's
Truth for Today : A daily touch of God's grace. One sentence today gripped my soul. "Living for the glory of God means knowing you are expendable and being ready to die, if necessary, to accomplish God’s ends." Paul lived like this as he wrote to the Philippians, "Even if I am to be poured out as a drink offering upon the sacrificial offering of your faith, I am glad and rejoice with you all." (Philippians 2:17, ESV) . Success then in God's eyes is being willing to serve others sacrifically and joyfully no matter what it costs.