Any believer who thinks they know what Jesus said, based on reading the Gospel accounts of his words is going to need tons of "faith", since the words of Jesus (and Paul, for that matter) have been heavily redacted (changed) over time to attempt to harmonize the various accounts (where the book of Mark (in addition to as an unknown work which NT scholars refer to as the 'q' document) was the source for the others. Jesus has thus been transformed into a meek, loving compassionate character over time, when the Markian account actually suggests he was a hot-head who at times got angry and contemptuous with those he healed; this been tempered down over time via curious translation choices, since it didn't fit with the desired image of Christ.
NT scholar Bart Ehrman makes a compelling case for many such changes having occurred, based on textual and linguistic analysis, and he goes over the details in his book, "Misquoting Jesus".
Same goes for Paul: many scholars suspect his misogynistic attitude stems from later redactors in the 2nd-4th Century CE who inserted such thoughts into "his" writings for him, in order to combat the heretical beliefs of gnosticism (a group of early Christian believers who allowed women to serve in leadership and teaching roles in the church, where there wasn't a fixed authoritarian structure within the group, but the roles each played at their meetings were determined on a weekly basis by drawing lots, in essence allowing the Holy Spirit to decide who got to do what).
Adam