 Jesus emphasized the need for pure thoughts as well as actions , and stated , " Everyone who looks at a woman lustfully has already committed adultery with her in his heart " ( Matthew 5 : 28 ) . The Catechism states that , with the help of God 's grace , men and women are required to overcome lust and bodily desires " for sinful relationships with another person 's spouse . " In Theology of the Body , a series of lectures given by Pope John Paul II , Jesus ' statement in Matthew 5 : 28 is interpreted that one can commit adultery in the heart not only with another 's spouse , but also with his / her own spouse if one looks at him / her lustfully or treats him / her " only as an object to satisfy instinct " . 
 Jesus emphasized the need for pure thoughts as well as actions , and stated , " Everyone <a href='null_relcl' title='1'><mark>who</mark></a><a href='uninflect' title='2'><mark>looks</mark></a> at a woman lustfully <a href='been_done' title='3'><mark>has</mark></a> already committed adultery with her in his heart " ( Matthew 5 : 28 ) . The Catechism <a href='uninflect' title='4'><mark>states</mark></a> that , with the help of God <a href='null_genetive' title='5'><mark>'s</mark></a>grace , men and women are required to overcome lust and bodily desires " for sinful relationships with another person <a href='null_genetive' title='6'><mark>'s</mark></a>spouse . " In Theology of the Body , a series of lectures given by Pope John Paul II , Jesus <a href='null_genetive' title='7'><mark>'</mark></a>statement in Matthew 5 : 28 is interpreted that one can commit adultery in the heart not only with another <a href='null_genetive' title='8'><mark>'s</mark></a>spouse , but also with his / her own spouse if one <a href='uninflect' title='9'><mark>looks</mark></a> at him / her lustfully or <a href='uninflect' title='10'><mark>treats</mark></a> him / her " only as an object to satisfy instinct " . 
Jesus emphasized the need for pure thoughts as well as actions , and stated , " every1 look at a woman lustfully done already committed adultery w/ her in his heart " ( Matthew 5 : 28 ) . The Catechism state that , wiwita help of God  grace , men and women are required to overcome lust and bodily desires " for sinful relationships witwitother person  spouse . " In Theology of tdaBody , a series of lectures given by Pope John Paul II , Jesus  statement in Matthew 5 : 28 is interpreted dat one can commit adultery in the heart not only with anotha  spouse , but also with his / her own spouse if one look at him / her lustfully or treat him / her " only as an object to satisfy instinct " .