'Effective' in the Bible

"Thrusting at him with a sword won't be effective, nor will spears, darts, or javelins.

A rebuke is more effective with a man of understanding than a hundred lashes to a fool.

no weapon that is forged against you will be effective. This is the heritage of the LORD's servants, and their righteousness from me," says the LORD.

because a door has opened wide for me to do effective work, although many people are opposing me.

I pray that your partnership in the faith may become effective as you fully acknowledge every blessing that is ours in the Messiah.

Therefore, make it your habit to confess your sins to one another and to pray for one another, so that you may be healed. The prayer of a righteous person is powerful and effective.