7 Of which I became a minister according to the gift of the grace of God having been given to me according to the working of his power. 8 To me, the least of all the saints, this grace was given to the gentiles to preach the unsearchable wealth of Christ 9 and to enlighten all men as to what is the stewardship of the mystery hidden from the ages in God, the one who created all things 10 that it might be made known now to the rulers and the authorities in the heavenlies through the Church the many faceted wisdom of God 11 according to the plan of the ages, which he made in Christ Jesus our Lord 12 in whom we have boldness and access in confidence through faith in him. 13 Therefore, I ask you not to despair concerning my afflictions for you, which is for your glory. Ephesians 3:7-13 (translated from the NA28 Greek text)
Those truly in Christ have indeed been given the incredible privilege of unimpeded access to the Throne of Grace (Hebrews 4:16), and that means they can come “boldly” to their Heavenly Father in Christ-confidence, not self-confidence.
From this passage we also see the “access” all in Christ have as a granted privilege. This access to come boldly to God in prayer has been granted only to those in Christ, no one else. Even so, this privilege is not to be taken for granted by Christians being impetuous or impulsive, that is, doing things hurriedly, or rushing about. I often despair of my lack of time in prayer each day as I take small parts here and there and pray hurriedly through them. What good is that? When we do that, our prayers become habitual and rushed and nothing more than a form of idolatry.