G2901–κραταιόω–krataioō

The child was growing, and becoming strong in spirit, and was in the desert until the day of his public appearance to Israel.

ἐκραταιοῦτο ekrataiouto “he was strengthened”

The child was growing, and was becoming strong in spirit, being filled with wisdom, and the grace of God was upon him.

ἐκραταιοῦτο ekrataiouto “He was being strengthened”

Watch! Stand firm in the faith! Be courageous! Be strong!

κραταιοῦσθε. krataiousthe “do be strong.”

that he would grant you, according to the riches of his glory, that you may be strengthened with power through his Spirit in the inward man;

κραταιωθῆναι krataiōthēnai “to be strengthened”