'Strive' in the Bible

He will not strive, nor shout; neither will anyone hear his voice in the streets.

"Strive to enter in by the narrow door, for many, I tell you, will seek to enter in, and will not be able.

Now I beg you, brothers, by our Lord Jesus Christ, and by the love of the Spirit, that you strive together with me in your prayers to God for me,