only this once # 02_EXO_10_17 # Now therefore forgive, I pray thee, my sin only this once, and entreat the LORD your God, that he may take away from me this death only. 
only this once # 07_JUD_16_28 # And Samson called unto the LORD, and said, O Lord GOD, remember me, I pray thee, and strengthen me, I pray thee, only this once, O God, that I may be at once avenged of the Philistines for my two eyes.