Moses
Numbers 14:17ESV·traditional attribution

And now, please let the power of the Lord be great as you have promised, saying,

John Calvin Reformed @genevareformer

17. And now, I beseech thee, let the power of my Lord be great. He derives another ground of confidence from the vision, in which God had more clearly manifested His nature, from whence it appears how much he had profited by it, and what earnest and anxious attention he had paid to it.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The righteous sentence which God gave against Israel for their murmuring and unbelief, which, though afterwards mitigated, showed what was the desert of their sin and the demand of injured justice, and what would have been done if Moses had not interposed.

Commenting on Numbers 14:11-19

John Gill Reformed Baptist @doctorgill

And now, I beseech thee, let the power of Lord be great,.... That is, appear to be great; the power of God is great, not only mighty, but almighty; it knows no bounds, nothing is impossible with him, he can do whatever he pleases, Psa 147:5; his power, and the greatness of it, had been seen in bringing the children of Israel out of Egypt...