"For we do not have a high priest who is unable to sympathize with our weaknesses, but we have one who in every respect has been tested as we are, yet without sin. Let us therefore approach the throne of grace with boldness, so that we may receive mercy and find grace to help in time of need."
The Wizard of Oz is an iconic story (and film!). Dorthy Gale, from Kansas, is transported to the "colorful" land of Oz via tornado. In order to get back home, she must journey to see the Great & Powerful Wizard of Oz. Along the way she picks up 3 friends (Scarecrow, Tinman & Lion), and 1 enemy (the Wicked Witch of the West).
One of the scenes that always got me was when Dorothy & Co. first meets the Wizard. The throne room was huge: high walls, tall ceilings, booming sound system, and a Jumbotronlike floating head! So intimidating!!! That's the effect that many rulers, leaders, and people in power desire. But not Jesus.
Jesus chose to embody humanity. Rather than settle for a floating green head (and great sound system), Jesus came with skin on him... flesh & blood... fully human. He knows what it's like for us. He's been through life on earth like we have. Therefore, says the writer of Hebrews, we can approach the "throne of grace" with boldness! God will not send us off on some quest to prove our worth (like bringing back the Wicked Witch's broomstick!). No, He gives us mercy & grace to help in time of need. So I need not be afraid of coming to God for ANYTHING. Neither should you!