David said in Psalm 34:7 and 17 “The angel of the Lord encamps all around those who fear Him, And delivers them.
“The righteous cry out, and the Lord hears,
And delivers them out of all their troubles.”
Jesus said in Mark 10:24-27:
And the disciples were astonished at His words. But Jesus answered again and said to them, “Children, how hard it is for those who trust in riches to enter the kingdom of God! It is easier for a camel to go through the eye of a needle than for a rich man to enter the kingdom of God.”
And they were greatly astonished, saying among themselves, “Who then can be saved?”
“But Jesus looked at them and said, “With men it is impossible, but not with God; for with God all things are possible.”
Gabriel to Mary in Luke 1:35-37:
And the angel answered and said to her, “The Holy Spirit will come upon you, and the power of the Highest will overshadow you; therefore, also, that Holy One who is to be born will be called the Son of God. Now indeed, Elizabeth your relative has also conceived a son in her old age; and this is now the sixth month for her who was called barren. For with God nothing will be impossible.”
“Do you now believe?” Jesus replied in John 16:31 (NIV).