Passage
Having, then, a great chief priest passed through the heavens--Jesus the Son of God--may we hold fast the profession,
Having, then, a great chief priest passed through the heavens--Jesus the Son of God--may we hold fast the profession,
Hebrews 4:12 for the reckoning of God is living, and working, and sharp above every two-edged sword, and piercing unto the dividing asunder both of soul and spirit, of joints also and marrow, and a discerner of thoughts and intents of the heart;
Hebrews 4:13 and there is not a created thing not manifest before Him, but all things <FI>are<Fi> naked and open to His eyes--with whom is our reckoning.
Hebrews 4:14 Having, then, a great chief priest passed through the heavens--Jesus the Son of God--may we hold fast the profession,
Hebrews 4:15 for we have not a chief priest unable to sympathise with our infirmities, but <FI>one<Fi> tempted in all things in like manner--apart from sin;
Hebrews 4:16 we may come near, then, with freedom, to the throne of the grace, that we may receive kindness, and find grace--for seasonable help.
The verse centers on "having", "great", "chief", "priest", "passed", "through", "heavens--jesus", and "god--may". It is saying that the verse draws attention to "having" and "great", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "and there is not a created thing..." into verse 15's "for we have not a chief priest...", so "having" and "great" belong inside that flow. In Hebrews context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "having" and "great" with trust shaped by these words, not by a vague optimism outside the passage.