According to the Merriam Webster dictionary, to endure means to suffer (something painful or difficult) patiently. So endurance is the ability to do so. The many synonyms include: stamina, staying power, fortitude, perseverance, persistence, tenacity, doggedness, grit, resolution, determination. None of us chooses to suffer painful or difficult circumstances indefinitely, but many times in our life we find ourselves enduring as best we can or perhaps even crying out for help when we feel we can endure no longer. When trials come, God reminds us in scripture that we need not endure alone. In Hebrews (see 12:1-2 below) we are reminded that we can endure any trial by looking to our Savior, Jesus. He endured the cross for us. He understands any pain, frustration, depression, and fear that might assail us. He promises to never leave us alone. Because he endured, we can also endure this life. We look forward to the time we will no longer endure, but simply bask in the love and presence of our dear Jesus and Father God.
Therefore, since we are surrounded by so great a cloud of witnesses, let us also lay aside every weight, and sin which clings so closely, and let us run with endurance the race that is set before us, looking to Jesus, the founder and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and is seated at the right hand of the throne of God. Hebrews 12:1-2