Anyone who is "religious" without a personal relationship with G-d is in trouble, spiritually speaking. I have a very personal relationship with the G-d of Abraham, Issac and Jacob. Look to King David as a model, he was a great King, yet humble, a murderer but forgiven, a flawed human being, but G-d called him friend, a man after G-ds heart. The longest chapter in all of scripture is Psalm 119, 176 verses of David praising the Law of G-d.
I am saved by Grace. Just as all of us are. Whenever we approach G-d and repent, turn from our sin, with a broken and contrite heart, we are forgiven. Why? By the grace of G-d.
Ps 32:5I acknowledge my sin unto thee, and mine iniquity have I not hid. I said, I will confess my transgressions unto the LORD; and thou forgavest the iniquity of my sin.
Ps 51:15 O Lord, open thou my lips; and my mouth shall shew forth thy praise. 16For thou desirest not sacrifice; else would I give it: thou delightest not in burnt offering. 17The sacrifices of God are a broken spirit: a broken and a contrite heart, O God, thou wilt not despise.
I am ever mindful, in our daily prayers of the power of G-d, the creator of the universe, King of all nations, Father and friend. And I am humbled as David wrote: 6But I am a worm, and no man; a reproach of men, and despised of the people.