OT-HISTORY.filter - rsv vain:

rsv@1Samuel:12:21 @ and do not turn aside after vain things which cannot profit or save, for they are vain.

rsv@1Samuel:17:39 @ And David girded his sword over his armor, and he tried in vain to go, for he was not used to them. Then David said to Saul, "I cannot go with these; for I am not used to them." And David put them off.

rsv@1Samuel:25:21 @ Now David had said, "Surely in vain have I guarded all that this fellow has in the wilderness, so that nothing was missed of all that belonged to him; and he has returned me evil for good.