3 verses have
strengthen
in Edition Clear Qur'an by Talal Itani / Al-Baqara (The Cow)

2:250And when they confronted Goliath and his troops, they said, “Our Lord, pour down patience on us, and strengthen our foothold, and support us against the faithless people.”

2:253These messengers: We gave some advantage over others. To some of them God spoke directly, and some He raised in rank. We gave Jesus son of Mary the clear miracles, and We strengthened him with the Holy Spirit. Had God willed, those who succeeded them would not have fought one another, after the clear signs had come to them; but they disputed; some of them believed, and some of them disbelieved. Had God willed, they would not have fought one another; but God does whatever He desires.

2:265And the parable of those who spend their wealth seeking God’s approval, and to strengthen their souls, is that of a garden on a hillside. If heavy rain falls on it, its produce is doubled; and if no heavy rain falls, then dew is enough. God is seeing of everything you do.