A councillor of honourable estate (euschēmōn bouleutēs). A senator or member of the Sanhedrin of high standing, rich (Mat 27:57).
Looking for the Kingdom of God (ēn prosdechomenos tēn basileian tou theou). Periphrastic imperfect. Also Luk 23:51. The very verb used by Luke of Simeon and Anna (Luk 2:25, Luk 2:38). Mat 27:57 calls him “Jesus’ disciple” while Joh 19:38 adds “secretly for fear of the Jews.” He had evidently taken no public stand for Jesus before now.
Boldly (tolmēsas). Aorist (ingressive) active participle, becoming bold. It is the glory of Joseph and Nicodemus, secret disciples of Jesus, that they took a bold stand when the rest were in terror and dismay. That is love psychology, paradoxical as it may seem.