O LORD, who may abide in Thy tent? Who may dwell on Thy holy hill? He who walks with integrity, and works righteousness, and speaks truth in his heart. He does not slander with his tongue, nor does evil to his neighbor, nor takes up a reproach against his friend. (Psalm 15:1-3).
Who may ascend into the hill of the LORD? And who may stand in His holy place? He who has clean hands and a pure heart, who has not lifted up his soul to falsehood, and has not sworn deceitfully. He shall receive a blessing from the LORD and righteousness from the God of his salvation. (Psalm 24:3-5).
He who walks righteously, and speaks with sincerity, he who rejects unjust gain, and shakes his hands so that they hold no bribe; he who stops his ears from hearing about bloodshed, and shuts his eyes from looking upon evil; he will dwell on the heights; his refuge will be the impregnable rock; his bread will be given him; his water will be sure. (Isaiah 33:15-16).
Without holiness no one will see the Lord. (Hebrews 12:14, NIV).