do they understand # 40_MAT_13_13 # Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand. 
that they understand # 61_2PE_02_12 # But these, as natural brute beasts, made to be taken and destroyed, speak evil of the things that they understand not; and shall utterly perish in their own corruption; 
they understand # 40_MAT_13_13 # Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand. 
will they understand # 19_PSA_82_05 # They know not, neither will they understand; they walk on in darkness: all the foundations of the earth are out of course.