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

2:40O Children of Israel! Remember My blessings which I bestowed upon you, and fulfill your pledge to Me, and I will fulfill My pledge to you, and fear Me.

2:63And recall when We received a pledge from you, and raised the Mount above you: “Take what We have given you earnestly, and remember what is in it, that you may attain righteousness.”

2:124And when his Lord tested Abraham with certain words, and he fulfilled them. He said, “I am making you a leader of humanity.” He said, “And my descendants?” He said, “My pledge does not include the wrongdoers.”

2:270Whatever charity you give, or a pledge you fulfill, God knows it. The wrongdoers have no helpers.