Boldness

Heb. 10:19-23 Therefore, brethren, having boldness (3954) to enter the Holiest by the blood of Jesus,   20 by a new and living way which He consecrated for us, through the veil, that is, His flesh,   21 and [having] a High Priest over the house of God,   22 let us draw near with a true heart in full assurance (4136) of faith, having our hearts sprinkled from an evil conscience and our bodies washed with pure water.   23 Let us hold fast (2722) the confession (4893) of [our] hope without wavering, for He who promised [is] faithful.

Heb. 4:14-16 Seeing then that we have a great High Priest who has passed through the heavens, Jesus the Son of God, let us hold fast (2902) [our] confession (3671).   15 For we do not have a High Priest who cannot sympathize with our weaknesses, but was in all [points] tempted as [we are, yet] without sin.   16 Let us therefore come boldly (3954) to the throne of grace, that we may obtain mercy and find grace to help in time of need.  

Eph. 3:8-12 To me, who am less than the least of all the saints, this grace was given, that I should preach among the Gentiles the unsearchable riches of Christ, 9 and to make all see what [is] the fellowship of the mystery, which from the beginning of the ages has been hidden in God who created all things through Jesus Christ; 10 to the intent that now the manifold wisdom of God might be made known by the church to the principalities and powers in the heavenly [places], 11 according to the eternal purpose which He accomplished in Christ Jesus our Lord, 12 in whom we have boldness (3954) and access (4318) with confidence (4006) through faith in Him. 

Boldness - παρρησία 3954 primarily, freedom of speech / the absence of fear in speaking boldly; hence, confidence, cheerful courage, boldness, without any connection necessarily with speech

Full assurance - πληροφορία 4136 a fullness, abundance, also means full assurance, entire confidence; a ‘full–carrying’

Hold fast - κατέχω 2722 to hold firmly, hold fast

Confession - συνείδησις 4893 a knowing with (sun, with, oida, to know), a co–knowledge (with oneself), the witness borne to one’s conduct by conscience, that faculty by which we apprehend the will of God, as that which is designed to govern our lives

Hold fast - κρατέω 2902 to be strong, mighty, to prevail, (1) is most frequently rendered to lay or take hold on

Confession – (oμολογία 3671 confession, that which we profess

Access - προσαγωγή 4318 a leading or bringing into the presence of ( pros, to, agō, to lead), denotes access, with which is associated the thought of freedom to enter through the assistance or favor of another. It is used three times, (a) Rom. 5:2 , of the access which we have by faith, through our Lord Jesus Christ, into grace; (b) Eph. 2:18, of our access in one Spirit through Christ, unto the Father; (c) Eph. 3:12 , of the same access, there said to be “in Christ,” and which we have “in confidence through our faith in Him.” This access involves the acceptance which we have in Christ with God, and the privilege of His favor towards us.

Confidence - πεποίθησις 4006 denotes persuasion, assurance, confidence