Exodus 15:11-13 (NKJV) 11 “Who is like You, O LORD, among the gods? Who is like You, glorious in holiness, Fearful in praises, doing wonders? 12 You stretched out Your right hand; The earth swallowed them. 13 You in Your mercy have led forth The people whom You have redeemed; You have guided them in Your strength To Your holy habitation."
Exodus 19:10-13 (NKJV) "Then the LORD said to Moses, 'Go to the people and consecrate them today and tomorrow, and let them wash their clothes. 11 And let them be ready for the third day. For on the third day the LORD will come down upon Mount Sinai in the sight of all the people. 12 You shall set bounds for the people all around, saying, ‘Take heed to yourselves that you do not go up to the mountain or touch its base. Whoever touches the mountain shall surely be put to death. 13 Not a hand shall touch him, but he shall surely be stoned or shot with an arrow; whether man or beast, he shall not live.’ When the trumpet sounds long, they shall come near the mountain.'”
Exodus 19:21-22 (NKJV) 21 "And the LORD said to Moses, 'Go down and warn the people, lest they break through to gaze at the LORD, and many of them perish. 22 Also let the priests who come near the LORD consecrate themselves, lest the LORD break out against them.'”
Leviticus 11:45 (NKJV) "For I am the LORD who brings you up out of the land of Egypt, to be your God. You shall therefore be holy, for I am holy."
Though the Sanctuary in Exodus was the place where God revealed His love and mercy, it was also the habitation of the Most High Holy God! Those who served there were to be holy, and those who came were to be seeking after holiness.
"Those who would share the benefits of the Saviour’s mediation should permit nothing to interfere with their duty to perfect holiness in the fear of God." {CIHS 185.1}
"The Lord designated a special family of the tribe of Levi to bear the ark; and others of the Levites were specially appointed by God to bear the tabernacle and all its furniture, and to perform the work of setting up and taking down the tabernacle. And if any man from curiosity or from lack of order, got out of his place, and touched any part of the sanctuary or furniture, or even came near any of the workmen, he was to be put to death. God did not leave his holy tabernacle to be borne, erected, and taken down, indiscriminately, by any tribe who might choose the office, but persons were chosen who could appreciate the sacredness of the work in which they were engaged. These men appointed by God were directed to impress upon the people the special sacredness of the ark and all that appertained thereunto, lest they should look upon these things without realizing their holiness, and should be cut off from Israel. All things pertaining to the most holy place were to be looked upon with reverence." {GW92 159.1}
"As Isaiah beheld this revelation of the glory and majesty of his Lord, he was overwhelmed with a sense of the purity and holiness of God. How sharp the contrast between the matchless perfection of his Creator, and the sinful course of those who, with himself, had long been numbered among the chosen people of Israel and Judah! “Woe is me!” he cried; “for I am undone; because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the Lord of hosts.” Verse 5.... {PK 307.2}
"The typical service was the connecting link between God and Israel. The sacrificial offerings were designed to prefigure the sacrifice of Christ, and thus to preserve in the hearts of the people an unwavering faith in the Redeemer to come. Hence, in order that the Lord might accept their sacrifices, and continue His presence with them, and, on the other hand, that the people might have a correct knowledge of the plan of salvation, and a right understanding of their duty, it was of the utmost importance that holiness of heart and purity of life, reverence for God, and strict obedience to His requirements, should be maintained by all connected with the sanctuary" (The Signs of the Times, December 1, 1881)