'Solemnly' in the Bible

Then He said, “I assure you and most solemnly say to you, no prophet is welcome in his hometown.

And looking toward His disciples, He began speaking: “Blessed [spiritually prosperous, happy, to be admired] are you who are poor [in spirit, those devoid of spiritual arrogance, those who regard themselves as insignificant], for the kingdom of God is yours [both now and forever].

Pay attention and always be on guard [looking out for one another]! If your brother sins and disregards God’s precepts, solemnly warn him; and if he repents and changes, forgive him.

"I solemnly tell you," replied Jesus, "that there is no one who has left house or wife, or brothers or parents or children, for the sake of God's Kingdom,

Zaccheus stopped and said to the Lord, “See, Lord, I am [now] giving half of my possessions to the poor, and if I have cheated anyone out of anything, I will give back four times as much.”