"Every word of God is pure; He is a shield to those who put their trust in Him." Proverbs 30:5 "...He is a shield to those who walk in integrity." Proverbs 2:7 "But You, O Lord are a shield for me, My glory and the One who lifts up my head." Psalm 3:3 "For the Lord is a sun and shield...no good things does He withhold from those who walk uprightly." Psalm 84:11

Scripture tells us here that God, the creator of the universe, is a shield to all who trust Him and walk uprightly and in integrity. These passages connect the shield, our protection, with the Believer's walk.  In all His ways God is righteous and true and to walk in His way is to be guarded with sound wisdom, grace and glory. It is the Holy Spirit who leads and guides our every step as we, receive God's word and treasure His commandments.

As we see in Scripture, God, our Shield, is:
Our help:
"Our soul waits for the Lord;
He is our help and our shield." Psalm 33:20

Our favor:
"For You, O Lord, will bless the righteous; With favor You will surround him as with a shield." Psalm 5:12 \ Our salvation:
"You have also given me the shield of Your salvation; Your right hand has held me up, Your gentleness has made me great. Psalm 18:35

Our truth:
"He shall cover you with His feathers,
And under His wings you shall take refuge; His truth shall be your shield and a buckler." Psalm 91:4

Our faith:
As included in the full armor of God in Ephesians 6, "In addition to all this, take up the shield of faith, with which you can extinguish all the flaming arrows of the evil one." vs. 16

To walk in integrity, to walk in God's way, we must know what is His way. We can only know that through His word.  His word is a beacon that illuminates our path. We are to watch the path and our ways will be established. 
"Let your eyes look right on [with fixed purpose], and let your gaze be straight before you. Consider well the path of your feet, and let all your ways be established and ordered aright." 
Proverbs 4:25-26 The Amplified Bible

"As for God, His way is perfect;
 The word of the Lord is proven;
 He is a shield to all who trust in Him." Psalm 18:30

Christ, the perfect One; is our shield, as we abide in Him, dwell in His presence, walk in His way, and allow Him to have His way in our life.

We are His! And with grateful hearts, we give Him all honor and 
praise.   Amen