John F. Macarthur Jr. said this quote

Once I was free in the shackles of sin:Free to be tempted, just bound to give in;Free to be captive to any desire;Free to eternally burn in hell’s fire.‘Til Someone bought me and called me His slave:Bound by commands I am free to obey;Captive by beauty I’m free to adore--Sentenced to sit at His feet evermore.