Ephesians 3:12-13

In him and through faith in him we may approach God with freedom and confidence. I ask you, therefore, not to be discouraged because of my sufferings for you, which are your glory.

In him and through faith in him we may approach God 
Ephesians 2:18  For through him we both have access to the Father by one Spirit.

with freedom and confidence 
2 Corinthians 3:4  Such confidence we have through Christ before God.
Hebrews 3:14-15  We have come to share Christ, if indeed we hold our original conviction firmly to the very end. As it has just been said, "Today, if you hear his voice, do not harden your hearts as you did in the rebellion." (Psalm 95:7-8)
Hebrews 4:16  Let us then approach God's throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need.
Hebrews 10:19  Therefore, brothers and sisters, since we have confidence to enter the Most Holy Place by the blood of Jesus, ...
Hebrews 10:35  So do not throw away your confidence; it will be richly rewarded.
1 John 2:28  And now, dear children, continue in him, so that when he appears we may be confident and unashamed before him at his coming.
1 John 3:21-22  Dear friends, if our hearts do not condemn us, we have confidence before God and receive from him anything we ask, because we keep his commands and do what pleases him.
1 John 4:15-17  If anyone acknowledges that Jesus is the Son of God, God lives in them and they in God. And so we know and rely on the love God has for us. God is love. Whoever lives in love lives in God, and God in them, This is how love is made complete among us so that we will have confidence on the day of judgment: In this world we are like Jesus.

(parentheses are mine)

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
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