I do not think Jesus meant that we should not bother to study the word of God. The Holy Spirit stores, organizes and recalls Gods word as he ministers through us to others. Recall that Jesus did not make wine in empty pitchers. Defend the truth with all gentleness and humility. The testimony of God in your own soul shows through in your behavior.
People can sense whether one is at peace or just putting up a front.
For it is better, if the will of God be so, that ye suffer for well doing, than for evil doing. If suffering must come, better it be undeserved, because of Godly living, than deserved, for evil behavior. 20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water. Christ lived among men, gave his life to redeem us from sin, was raised again, ascended into heaven and is now awaiting the calling out of his bride. For an expansion of this thought begin reading at the first chapter of Hebrews.