'Single' in the Bible

whereas Christ, having offered the one sacrifice [the all-sufficient sacrifice of Himself] for sins for all time, sat down [signifying the completion of atonement for sin] at the right hand of God [the position of honor],

For by a single offering he has perfected for all time those who are being sanctified.

No one should be immoral or godless like Esau, who sold his birthright for a single meal.