We see that Jesus pronounces woes upon the Pharissee's in last weeks teachings, as we where learning that imprecatory prayers and Psalms were not to be used by new believers, for personal vendettas or revenge but by the more mature believers and that against God's enemies such as the False teachers, advesaries to the cross. It is a tool or weapon in the hands of those who know how and when to use the sword of God's word.