25 Then he made the altar of incense of acacia wood: a cubit [ab]long and a cubit [ac]wide, square, and two cubits [ad]high; its horns were of one piece with it. 26 He overlaid it with pure gold, its top and its [ae]sides all around, and its horns; and he made a gold molding for it all around. 27 He made two golden rings for it under its molding, on its two sides—on opposite sides—as holders for poles with which to carry it. 28 He made the poles of acacia wood and overlaid them with gold. 29 And he made the holy anointing oil and the pure, fragrant incense of spices, the work of a perfumer.
There is an emphasis here (and throughout these passages) on purity. God isn’t terribly fond of impurities. He wants us to live holy lives, blameless unto Him. It is why He had to send His Son, Jesus, to this earth to die. He cannot tolerate sin in our lives, and if we are unable to pay the penalty, Jesus had to do it for us. Thank God for making it possible for our hearts to be purified, to be made right with God again.