Seeing then that we have a great High Priest who has passed through the heavens, Jesus the Son of God, let us hold fast our confession. For we do not have a High Priest who cannot sympathize with our weakness, but was in all points tempted as we are, yet without sin. Let us therefore come boldly to the throne of grace, that we may obtain mercy and find grace to help in time of need.
We, those who are in Christ can "come boldly" to the 'throne of grace' because we have a High Priest in Jesus who fulfilled the righteous requirement that God's grace and mercy would be available for us [Romans 8:1-4].
Our advancement to the 'throne of grace' can be "bold" because of the finished work of God in and by His Son Jesus. If we truly believe that Jesus fulfilled the "righteous requirement of the law by condemning sin in the flesh while He Himself was in the flesh", then this is why we can "boldly come" to this throne. This "bold" approach has nothing; not one thing to do with you and I, but everything to do with Him and the work He did.
*** It's like if someone was chasing me, to steal from me, kill me and or destroy me, I can "boldly" run to the police station and or police officer and EXPECT protection. My "boldness" is in the fact that they have sworn to "protect and serve" me. They have trained to do so and have chosen to make this their work. Now I can run inside any other business for protection, but it does not mean that I am going to receive it, so I would be a fool to think so. But I have the RIGHT to believe that the police will do all that they need to do to "protect" me.
What the word of God is saying in these scriptures is that I have the RIGHT to EXPECT to "obtain mercy and find grace" when I come to this throne "in my time of need". And what is even greater than that, is the fact that He can and will PROVIDE that which is NEEDED because He Himself has in a sense "trained" for this Himself during His time in the flesh. He Himself has also in a sense sworn to "protect and serve" me, so there is a throne.
Therefore, we can come to the throne of grace "boldly".
Nothing; not one thing to do with us, so our "boldness" has to be focused and directed on Him as in anything dealing with grace.
For by grace you have been saved through faith, and not of yourselves; it is the gift from God, not of works, lest anyone should boast.
There is no cause, no reason, no room for self-recognition in the works of the grace of God.
We obtained access to the "throne of grace" because God's love for us and can EXPECT to receive what we need because He is "rich in mercy" and because of the "exceeding riches of His grace" [Ephesians 2:4&7].
"Let us therefore "come boldly" to the throne of grace", He is waiting to help.