Mark 9:5

And Peter answered and said to Jesus
He addressed himself to him, as being more familiar with him; as also because he was the principal person: wherefore he says,

master, it is good for us to be here:
the company and conversation were exceeding agreeable to him and his fellow disciples; and the glory that Christ appeared in surpassed every thing they had seen before:

and let us make three tabernacles;
or, as the Syriac, Arabic, and Ethiopic versions read, "and we will make" expressing not a petition, but a resolution; to which the Persic version premises, "if thou wilt give us commandment"; submitting it to the will of Christ:

one for thee, and one for Moses, and one for Elias;
(See Gill on Matthew 17:4).