From this it seems that angels are like men in some ways. So the people sent to Shiloh, that they might bring from there the ark of the covenant of the LORD of hosts, who dwells between the cherubim. And the two sons of Eli, Hophni and Phinehas, were there with the ark of the covenant of God. And let the house of Your servant David be established before You. Also, it is clear, that sometimes angels can be seen by men.
Angels also worship.
And His ministers a flame of fire. The phrase flame of fire probably speaks of the power and spirit nature of angels. Please note, due to the size of this study. The rest of it will be finished on the spirits in the Bible web pages.